Plato and Platonic Academy

Plato ( /ˈpleɪtoʊ/; Greek: Πλάτων, Plátōn, "broad";[2] 424/423 BC[a] – 348/347 BC) was a Classical Greek philosopher, mathematician, student of Socrates, writer of philosophical dialogues, and founder of the Academy in Athens, the first institution of higher learning in the Western world. HP Pavilion dv7-4010em BatteryAlong with his mentor, Socrates, and his student, Aristotle, Plato helped to lay the foundations of Western philosophy and science.[3] In the words of A. N. Whitehead: The safest general characterization of the European philosophical tradition is that it consists of a series of footnotes to Plato. HP Pavilion dv7-4010eq BatteryI do not mean the systematic scheme of thought which scholars have doubtfully extracted from his writings. I allude to the wealth of general ideas scattered through them.[4] Plato's sophistication as a writer is evident in his Socratic dialogues; thirty-six dialogues and thirteen letters have been ascribed to him. HP Pavilion dv7-4010es BatteryPlato's writings have been published in several fashions; this has led to several conventions regarding the naming and referencing of Plato's texts.[5] Plato's dialogues have been used to teach a range of subjects, including philosophy, logic, ethics, rhetoric, and mathematics. HP Pavilion dv7-4010ev Battery Biography Early life Main article: Early life of Plato Birth and familyHP Pavilion dv7-4010sd Battery The exact place and time of Plato's birth are not known, but it is certain that he belonged to an aristocratic and influential family. Based on ancient sources, most modern scholars believe that he was born in Athens or Aegina[b] between 429 and 423 BC.[a] His father was Ariston. According to a disputed tradition, HP Pavilion dv7-4010sg Battery reported by Diogenes Laertius, Ariston traced his descent from the king of Athens, Codrus, and the king of Messenia, Melanthus.[6] Plato's mother was Perictione, whose family boasted of a relationship with the famous Athenian lawmaker and lyric poet Solon.[7] Perictione was sister of Charmides and niece of Critias, HP Pavilion dv7-4010sl Batteryboth prominent figures of the Thirty Tyrants, the brief oligarchic regime, which followed on the collapse of Athens at the end of the Peloponnesian War (404–403 BC).[8] Besides Plato himself, Ariston and Perictione had three other children; these were two sons, Adeimantus and Glaucon, and a daughter Potone, HP Pavilion dv7-4010so Batterythe mother of Speusippus (the nephew and successor of Plato as head of his philosophical Academy).[8] According to the Republic, Adeimantus and Glaucon were older than Plato.[9] Nevertheless, in his Memorabilia, Xenophon presents Glaucon as younger than Plato.[10] The traditional date of Plato's birth (428/427) is based on a dubious interpretation of Diogenes Laertius, HP Pavilion dv7-4010sv Batterywho says, "When [Socrates] was gone, [Plato] joined Cratylus the Heracleitean and Hermogenes, who philosophized in the manner of Parmenides. Then, at twenty-eight, Hermodorus says, [Plato] went to Euclides in Megara." As Debra Nails argues, "The text itself gives no reason to infer that Plato left immediately for Megara and implies the very opposite." HP Pavilion dv7-4010sw Battery [11] In his Seventh Letter Plato notes that his coming of age coincided with the taking of power by the Thirty, remarking, "But a youth under the age of twenty made himself a laughingstock if he attempted to enter the political arena." Thus Nails dates Plato's birth to 424/423.[12] HP Pavilion dv7-4010tx Battery According to some accounts, Ariston tried to force his attentions on Perictione, but failed in his purpose; then the god Apollo appeared to him in a vision, and as a result, Ariston left Perictione unmolested.[13] Another legend related that, when Plato was an infant, HP Pavilion dv7-4011eg Batterybees settled on his lips while he was sleeping: an augury of the sweetness of style in which he would discourse philosophy.[14] Ariston appears to have died in Plato's childhood, although the precise dating of his death is difficult.[15] Perictione then married Pyrilampes, her mother's brother,[16] who had served many times as an ambassador to the Persian court and was a friend of Pericles, HP Pavilion dv7-4011el Batterythe leader of the democratic faction in Athens.[17] Pyrilampes had a son from a previous marriage, Demus, who was famous for his beauty.[18] Perictione gave birth to Pyrilampes' second son, Antiphon, the half-brother of Plato, who appears in Parmenides.[19] In contrast to his reticence about himself, HP Pavilion dv7-4011so BatteryPlato often introduced his distinguished relatives into his dialogues, or referred to them with some precision: Charmides has a dialogue named after him; Critias speaks in both Charmides and Protagoras; and Adeimantus and Glaucon take prominent parts in the RepublicHP Pavilion dv7-4012eg Battery.[20] These and other references suggest a considerable amount of family pride and enable us to reconstruct Plato's family tree. According to Burnet, "the opening scene of the Charmides is a glorification of the whole [family] connection ... Plato's dialogues are not only a memorial to Socrates, but also the happier days of his own family."[21] HP Pavilion dv7-4012TX Battery Name According to Diogenes Laërtius, the philosopher was named Aristocles after his grandfather, but his wrestling coach, Ariston of Argos, dubbed him "Platon", meaning "broad," HP Pavilion dv7-4013eg Batteryon account of his robust figure.[22] According to the sources mentioned by Diogenes (all dating from the Alexandrian period), Plato derived his name from the breadth (platytês) of his eloquence, or else because he was very wide (platýs) across the forehead.[23] In the 21st century some scholars[citation needed] disputed Diogenes, HP Pavilion dv7-4013el Batteryand argued that the legend about his name being Aristocles originated in the Hellenistic age.[c] Education Apuleius informs us that Speusippus praised Plato's quickness of mind and modesty as a boy, and the "first fruits of his youth infused with hard work and love of study".HP Pavilion dv7-4013so Battery [24] Plato must have been instructed in grammar, music, and gymnastics by the most distinguished teachers of his time.[25] Dicaearchus went so far as to say that Plato wrestled at the Isthmian games.[26] Plato had also attended courses of philosophy; before meeting Socrates, HP Pavilion dv7-4013tx Battery he first became acquainted with Cratylus (a disciple of Heraclitus, a prominent pre-Socratic Greek philosopher) and the Heraclitean doctrines.[27] Early Hebrew-language chronology works indicate that Plato met Jeremiah in Egypt [28] and was thereby influenced by him. HP Pavilion dv7-4014eo Battery It is recorded that he initially perceived Jeremiah to be absurd.[29] Plato and Socrates The precise relationship between Plato and Socrates remains an area of contention among scholars. Plato makes it clear in his Apology of Socrates, that he was a devoted young follower. In that dialogue, HP Pavilion dv7-4015ew Battery Socrates is presented as mentioning Plato by name as one of those youths close enough to him to have been corrupted, if he were in fact guilty of corrupting the youth, and questioning why their fathers and brothers did not step forward to testify against him if he was indeed guilty of such a crime (33d-34a). HP Pavilion dv7-4015ez Battery Later, Plato is mentioned along with Crito, Critobolus, and Apollodorus as offering to pay a fine of 30 minas on Socrates' behalf, in lieu of the death penalty proposed by Meletus (38b). In the Phaedo, the title character lists those who were in attendance at the prison on Socrates' last day, explaining Plato's absence by saying, "Plato was ill" (Phaedo 59b). HP Pavilion dv7-4015sa Battery Plato never speaks in his own voice in his dialogues. In the Second Letter, it says, "no writing of Plato exists or ever will exist, but those now said to be his are those of a Socrates become beautiful and new" (341c); if the Letter is Plato's, the final qualification seems to call into question the dialogues' historical fidelity. HP Pavilion dv7-4015sg Battery In any case, Xenophon and Aristophanes seem to present a somewhat different portrait of Socrates than Plato paints. Some have called attention to the problem of taking Plato's Socrates to be his mouthpiece, given Socrates' reputation for irony and the dramatic nature of the dialogue form[30] HP Pavilion dv7-4015sl Battery Aristotle attributes a different doctrine with respect to the ideas to Plato and Socrates (Metaphysics 987b1–11). Putting it in a nutshell, Aristotle merely suggests that his idea of forms can be discovered through investigation of the natural world, unlike Plato's Forms that exist beyond and outside the ordinary range of human understandingHP Pavilion dv7-4015ss Battery. Later life Plato may have traveled in Italy, Sicily, Egypt and Cyrene.[31] Said to have returned to Athens at the age of forty, Plato founded one of the earliest known organized schools in Western Civilization on a plot of land in the Grove of Hecademus or Academus. HP Pavilion dv7-4016eg Battery [32] The Academy was "a large enclosure of ground that was once the property of a citizen at Athens named Academus (some, however, say that it received its name from an ancient hero).[33] The Academy operated until it was destroyed by Lucius Cornelius Sulla in 84 BC. Neoplatonists revived the Academy in the early 5th century, HP Pavilion dv7-4017ez Battery and it operated until AD 529, when it was closed by Justinian I of Byzantium, who saw it as a threat to the propagation of Christianity. Many intellectuals were schooled in the Academy, the most prominent one being Aristotle.[34] Throughout his later life, HP Pavilion dv7-4019sz BatteryPlato became entangled with the politics of the city of Syracuse. According to Diogenes Laertius, Plato initially visited Syracuse while it was under the rule of Dionysus.[35] During this first trip Dionysus's brother-in-law, Dion of Syracuse, became one of Plato's disciples, but the tyrant himself turned against Plato. HP Pavilion dv7-4020ec Battery Plato was sold into slavery and almost faced death in Cyrene, a city at war with Athens, before an admirer bought Plato's freedom and sent him home. After Dionysius's death, according to Plato's Seventh Letter, Dion requested Plato return to Syracuse to tutor Dionysus II and guide him to become a philosopher king. HP Pavilion dv7-4020em BatteryDionysius II seemed to accept Plato's teachings, but he became suspicious of Dion, his uncle. Dionysus expelled Dion and kept Plato against his will. Eventually Plato left Syracuse. Dion would return to overthrow Dionysus and ruled Syracuse for a short time before being usurped by Calippus, a fellow disciple of Plato. HP Pavilion dv7-4020eo Battery Death A variety of sources have given accounts of Plato's death. One story, based on a mutilated manuscript,[36] suggests Plato died in his bed, whilst a young Thracian girl played the flute to him. HP Pavilion dv7-4020es Battery [37] Another tradition suggests Plato died at a wedding feast. The account is based on Diogenes Laertius's reference to an account by Hermippus, a third century Alexandrian.[38] According to Tertullian, Plato simply died in his sleep.[38] PhilosophyHP Pavilion dv7-4020ew Battery Aristotle gestures to the earth, representing his belief in knowledge through empirical observation and experience, while holding a copy of his Nicomachean Ethics in his hand. Plato holds his Timaeus and gestures to the heavens, representing his belief in The Forms Recurrent themesHP Pavilion dv7-4020sa Battery Plato often discusses the father-son relationship and the "question" of whether a father's interest in his sons has much to do with how well his sons turn out. A boy in ancient Athens was socially located by his family identity, and Plato often refers to his characters in terms of their paternal and fraternal relationships. HP Pavilion dv7-4020sd Battery Socrates was not a family man, and saw himself as the son of his mother, who was apparently a midwife. A divine fatalist, Socrates mocks men who spent exorbitant fees on tutors and trainers for their sons, and repeatedly ventures the idea that good character is a gift from the gods. Crito reminds Socrates that orphans are at the mercy of chance, HP Pavilion dv7-4020tx Battery but Socrates is unconcerned. In the Theaetetus, he is found recruiting as a disciple a young man whose inheritance has been squandered. Socrates twice compares the relationship of the older man and his boy lover to the father-son relationship (Lysis 213a, Republic 3.403b), and in the Phaedo, HP Pavilion dv7-4021so BatterySocrates' disciples, towards whom he displays more concern than his biological sons, say they will feel "fatherless" when he is gone. In several dialogues, Socrates floats the idea that knowledge is a matter of recollection, and not of learning, observation, or study.[39] He maintains this view somewhat at his own expense, HP Pavilion dv7-4021tx Battery because in many dialogues, Socrates complains of his forgetfulness. Socrates is often found arguing that knowledge is not empirical, and that it comes from divine insight. In many middle period dialogues, such as the Phaedo, Republic and Phaedrus Plato advocates a belief in the immortality of the soul, and several dialogues end with long speeches imagining the afterlife. HP Pavilion dv7-4022ez Battery More than one dialogue contrasts knowledge and opinion, perception and reality, nature and custom, and body and soul. Several dialogues tackle questions about art: Socrates says that poetry is inspired by the muses, and is not rational. He speaks approvingly of this, and other forms of divine madness (drunkenness, eroticism, HP Pavilion dv7-4022so Batteryand dreaming) in the Phaedrus (265a–c), and yet in the Republic wants to outlaw Homer's great poetry, and laughter as well. In Ion, Socrates gives no hint of the disapproval of Homer that he expresses in the Republic. The dialogue Ion suggests that Homer's Iliad functioned in the ancient Greek world as the Bible does today in the modern Christian world: HP Pavilion dv7-4022tx Battery as divinely inspired literature that can provide moral guidance, if only it can be properly interpreted. On politics and art, religion and science, justice and medicine, virtue and vice, crime and punishment, pleasure and pain, rhetoric and rhapsody, human nature and sexuality, love and wisdom, HP Pavilion dv7-4023so Battery Socrates and his company of disputants had something to say. Metaphysics Main article: Platonic realism "Platonism" is a term coined by scholars to refer to the intellectual consequences of denying, HP Pavilion dv7-4024so Battery as Socrates often does, the reality of the material world. In several dialogues, most notably the Republic, Socrates inverts the common man's intuition about what is knowable and what is real. While most people take the objects of their senses to be real if anything is, Socrates is contemptuous of people who think that something has to be graspable in the hands to be real. HP Pavilion dv7-4024tx Battery In the Theaetetus, he says such people are "eu a-mousoi", an expression that means literally, "happily without the muses" (Theaetetus 156a). In other words, such people live without the divine inspiration that gives him, and people like him, access to higher insights about reality. HP Pavilion dv7-4025eo Battery Socrates's idea that reality is unavailable to those who use their senses is what puts him at odds with the common man, and with common sense. Socrates says that he who sees with his eyes is blind, and this idea is most famously captured in his allegory of the cave, and more explicitly in his description of the divided line. HP Pavilion dv7-4025ew Battery The allegory of the cave (begins Republic 7.514a) is a paradoxical analogy wherein Socrates argues that the invisible world is the most intelligible ("noeton") and that the visible world ("(h)oraton") is the least knowable, and the most obscure. HP Pavilion dv7-4025ss Battery Socrates says in the Republic that people who take the sun-lit world of the senses to be good and real are living pitifully in a den of evil and ignorance. Socrates admits that few climb out of the den, or cave of ignorance, and those who do, not only have a terrible struggle to attain the heights, HP Pavilion dv7-4025tx Batterybut when they go back down for a visit or to help other people up, they find themselves objects of scorn and ridicule. According to Socrates, physical objects and physical events are "shadows" of their ideal or perfect forms, and exist only to the extent that they instantiate the perfect versions of themselves. Just as shadows are temporary, HP Pavilion dv7-4026eo Battery inconsequential epiphenomena produced by physical objects, physical objects are themselves fleeting phenomena caused by more substantial causes, the ideals of which they are mere instances. For example, Socrates thinks that perfect justice exists (although it is not clear where) and his own trial would be a cheap copy of it. HP Pavilion dv7-4026tx Battery The allegory of the cave (often said by scholars to represent Plato's own epistemology and metaphysics) is intimately connected to his political ideology (often said to also be Plato's own), that only people who have climbed out of the cave and cast their eyes on a vision of goodness are fit to rule. HP Pavilion dv7-4027so Battery Socrates claims that the enlightened men of society must be forced from their divine contemplations and be compelled to run the city according to their lofty insights. Thus is born the idea of the "philosopher-king", the wise person who accepts the power thrust upon him by the people who are wise enough to choose a good master. HP Pavilion dv7-4027tx BatteryThis is the main thesis of Socrates in the Republic, that the most wisdom the masses can muster is the wise choice of a ruler. The word metaphysics derives from the fact that Aristotle's musings about divine reality came after ("meta") his lecture notes on his treatise on nature ("physics"). HP Pavilion dv7-4028eo BatteryThe term is in fact applied to Aristotle's own teacher, and Plato's "metaphysics" is understood as Socrates' division of reality into the warring and irreconcilable domains of the material and the spiritual. The theory has been of incalculable influence in the history of Western philosophy and religion. Theory of FormsHP Pavilion dv7-4028tx Battery Main article: Theory of Forms The Theory of Forms (Greek: ἰδέαι) typically refers to the belief expressed by Socrates in some of Plato's dialogues, that the material world as it seems to us is not the real world, but only an image or copy of the real world. HP Pavilion dv7-4029tx BatterySocrates spoke of forms in formulating a solution to the problem of universals. The forms, according to Socrates, are roughly speaking archetypes or abstract representations of the many types of things, and properties we feel and see around us, that can only be perceived by reason (Greek: λογική); (that is, they are universals). In other words, HP Pavilion dv7-4030ed Battery Socrates sometimes seems to recognise two worlds: the apparent world, which constantly changes, and an unchanging and unseen world of forms, which may be a cause of what is apparent. Epistemology Main article: Platonic epistemologyHP Pavilion dv7-4030ek Battery Many have interpreted Plato as stating that knowledge is justified true belief, an influential view that informed future developments in modern analytic epistemology. This interpretation is based on a reading of the Theaetetus wherein Plato argues that belief is to be distinguished from knowledge on account of justification. HP Pavilion dv7-4030em Battery Many years later, Edmund Gettier famously demonstrated the problems of the justified true belief account of knowledge. This interpretation, however, imports modern analytic and empiricist categories onto Plato himself and is better read on its own terms than as Plato's view.[citation needed] Really, in the Sophist, HP Pavilion dv7-4030er BatteryStatesman, Republic, and the Parmenides Plato himself associates knowledge with the apprehension of unchanging Forms and their relationships to one another (which he calls "expertise" in Dialectic). More explicitly, Plato himself argues in the Timaeus that knowledge is always proportionate to the realm from which it is gained. In other words, if one derives one's account of something experientially, HP Pavilion dv7-4030ew Batterybecause the world of sense is in flux, the views therein attained will be mere opinions. And opinions are characterized by a lack of necessity and stability. On the other hand, if one derives one's account of something by way of the non-sensible forms, because these forms are unchanging, so too is the account derived from them. HP Pavilion dv7-4030ss Battery It is only in this sense that Plato uses the term "knowledge". In the Meno, Socrates uses a geometrical example to expound Plato's view that knowledge in this latter sense is acquired by recollection. Socrates elicits a fact concerning a geometrical construction from a slave boy, HP Pavilion dv7-4031eo Batterywho could not have otherwise known the fact (due to the slave boy's lack of education). The knowledge must be present, Socrates concludes, in an eternal, non-experiential form. The state Main article: The Republic (Plato) HP Pavilion dv7-4031sd Battery Plato's philosophical views had many societal implications, especially on the idea of an ideal state or government. There is some discrepancy between his early and later views. Some of the most famous doctrines are contained in the Republic during his middle period, as well as in the Laws and the Statesman. HowevHP Pavilion dv7-4031tx Batteryer, because Plato wrote dialogues, it is assumed that Socrates is often speaking for Plato. This assumption may not be true in all cases. Plato, through the words of Socrates, asserts that societies have a tripartite class structure corresponding to the appetite/spirit/reason structure of the individual soul. HP Pavilion dv7-4032eo Battery The appetite/spirit/reason stand for different parts of the body. The body parts symbolize the castes of society.[40] Productive, which represents the abdomen. (Workers) — the labourers, carpenters, plumbers, masons, merchants, farmers, ranchers, etc. These correspond to the "appetite" part of the soul. HP Pavilion dv7-4033tx Battery Protective, which represents the chest. (Warriors or Guardians) — those who are adventurous, strong and brave; in the armed forces. These correspond to the "spirit" part of the soul. Governing, HP Pavilion dv7-4034tx Battery which represents the head. (Rulers or Philosopher Kings) — those who are intelligent, rational, self-controlled, in love with wisdom, well suited to make decisions for the community. These correspond to the "reason" part of the soul and are very few. According to this model, HP Pavilion dv7-4035es Battery the principles of Athenian democracy (as it existed in his day) are rejected as only a few are fit to rule. Instead of rhetoric and persuasion, Plato says reason and wisdom should govern. As Plato puts it: "Until philosophers rule as kings or those who are now called kings and leading men genuinely and adequately philosophise, that is, HP Pavilion dv7-4035sa Batteryuntil political power and philosophy entirely coincide, while the many natures who at present pursue either one exclusively are forcibly prevented from doing so, cities will have no rest from evils,... nor, I think, will the human race." (Republic 473c-d) However, HP Pavilion dv7-4035sa Battery it must be taken into account that the ideal city outlined in the Republic is qualified by Socrates as the ideal luxurious city, examined to determine how it is that injustice and justice grow in a city (Republic 372e). According to Socrates, the "true" and "healthy" city is instead the one first outlined in book II of the Republic, 369c–372d, HP Pavilion dv7-4035so Battery containing farmers, craftsmen, merchants, and wage-earners, but lacking the guardian class of philosopher-kings as well as delicacies such as "perfumed oils, incense, prostitutes, and pastries", in addition to paintings, gold, ivory, couches, a multitude of occupations such as poets and hunters, and war. HP Pavilion dv7-4035tx Battery In addition, the ideal city is used as an image to illuminate the state of one's soul, or the will, reason, and desires combined in the human body. Socrates is attempting to make an image of a rightly ordered human, and then later goes on to describe the different kinds of humans that can be observed, HP Pavilion dv7-4036tx Batteryfrom tyrants to lovers of money in various kinds of cities. The ideal city is not promoted, but only used to magnify the different kinds of individual humans and the state of their soul. However, the philosopher king image was used by many after Plato to justify their personal political beliefs. The philosophic soul according to Socrates has reason, HP Pavilion dv7-4038ca Battery will, and desires united in virtuous harmony. A philosopher has the moderate love for wisdom and the courage to act according to wisdom. Wisdom is knowledge about the Good or the right relations between all that exists. Wherein it concerns states and rulers, Plato has made interesting arguments. For instance he asks which is better—a bad democracy or a country reigned by a tyrant. HP Pavilion dv7-4038tx Battery He argues that it is better to be ruled by a bad tyrant, than be a bad democracy (since here all the people are now responsible for such actions, rather than one individual committing many bad deeds.) This is emphasised within the Republic as Plato describes the event of mutiny onboard a ship. HP Pavilion dv7-4039tx Battery [41] Plato suggests the ships crew to be in line with the democratic rule of many and the captain, although inhibited through ailments, the tyrant. Plato's description of this event is parallel to that of democracy within the state and the inherent problems that arise. According to Plato, a state made up of different kinds of souls will, overall, HP Pavilion dv7-4040ed Battery decline from an aristocracy (rule by the best) to a timocracy (rule by the honorable), then to an oligarchy (rule by the few), then to a democracy (rule by the people), and finally to tyranny (rule by one person, rule by a tyrant).[42] Aristocracy is the form of government (politeia) advocated in Plato's Republic. This regime is ruled by a philosopher king, HP Pavilion dv7-4040ek Batteryand thus is grounded on wisdom and reason. The aristocratic state, and the man whose nature corresponds to it, are the objects of Plato's analyses throughout much of the Republic, as opposed to the other four types of states/men, who are discussed later in his work. In Book VIII, Plato states in order the other four imperfect societies with a description of the state's structure and individual character. HP Pavilion dv7-4040sa Battery In timocracy the ruling class is made up primarily of those with a warrior-like character. In his description, Plato has Sparta in mind. Oligarchy is made up of a society in which wealth is the criterion of merit and the wealthy are in control. In democracy, HP Pavilion dv7-4040sb Batterythe state bears resemblance to ancient Athens with traits such as equality of political opportunity and freedom for the individual to do as he likes. Democracy then degenerates into tyranny from the conflict of rich and poor. It is characterized by an undisciplined society existing in chaos, where the tyrant rises as popular champion leading to the formation of his private army and the growth of oppression. HP Pavilion dv7-4040sf Battery [43] Unwritten doctrines For a long time Plato's unwritten doctrine[44][45][46] had been controversial. Many modern books on Plato seem to diminish its importance; nevertheless the first important witness who mentions its existence is Aristotle, HP Pavilion dv7-4040sp Battery who in his Physics (209 b) writes: "It is true, indeed, that the account he gives there [i.e. in Timaeus] of the participant is different from what he says in his so-called unwritten teachings (ἄγραφα δόγματα)." The term ἄγραφα δόγματα literally means unwritten doctrines and it stands for the most fundamental metaphysical teaching of Plato, HP Pavilion dv7-4040ss Battery which he disclosed only orally, and some say only to his most trusted fellows, and which he may have kept secret from the public. The importance of the unwritten doctrines does not seem to have been seriously questioned before the 19th century. A reason for not revealing it to everyone is partially discussed in Phaedrus (276 c) where Plato criticizes the written transmission of knowledge as faulty, HP Pavilion dv7-4040tx Batteryfavoring instead the spoken logos: "he who has knowledge of the just and the good and beautiful ... will not, when in earnest, write them in ink, sowing them through a pen with words, which cannot defend themselves by argument and cannot teach the truth effectually." HP Pavilion dv7-4045ea BatteryThe same argument is repeated in Plato's Seventh Letter (344 c): "every serious man in dealing with really serious subjects carefully avoids writing." In the same letter he writes (341 c): "I can certainly declare concerning all these writers who claim to know the subjects that I seriously study ... there does not exist, nor will there ever exist, HP Pavilion dv7-4045eb Battery any treatise of mine dealing therewith." Such secrecy is necessary in order not "to expose them to unseemly and degrading treatment" (344 d). It is however said that Plato once disclosed this knowledge to the public in his lecture On the Good (Περὶ τἀγαθοῦ), HP Pavilion dv7-4045er Battery in which the Good (τὸ ἀγαθόν) is identified with the One (the Unity, τὸ ἕν), the fundamental ontological principle. The content of this lecture has been transmitted by several witnesses, among others Aristoxenus who describes the event in the following words: "Each came expecting to learn something about the things that are generally considered good for men, HP Pavilion dv7-4047ea Batterysuch as wealth, good health, physical strength, and altogether a kind of wonderful happiness. But when the mathematical demonstrations came, including numbers, geometrical figures and astronomy, and finally the statement Good is One seemed to them, I imagine, utterly unexpected and strange; hence some belittled the matter, while others rejected it." HP Pavilion dv7-4050ea BatterySimplicius quotes Alexander of Aphrodisias who states that "according to Plato, the first principles of everything, including the Forms themselves are One and Indefinite Duality (ἡ ἀόριστος δυάς), which he called Large and Small (τὸ μέγα καὶ τὸ μικρόν) ... one might also learn this from Speusippus and Xenocrates and the others who were present at Plato's lecture on the Good"HP Pavilion dv7-4050eb Battery Their account is in full agreement with Aristotle's description of Plato's metaphysical doctrine. In Metaphysics he writes: "Now since the Forms are the causes of everything else, he [i.e. Plato] supposed that their elements are the elements of all things. Accordingly the material principle is the Great and Small [i.e. the Dyad], HP Pavilion dv7-4050ec Batteryand the essence is the One (τὸ ἕν), since the numbers are derived from the Great and Small by participation in the One" (987 b). "From this account it is clear that he only employed two causes: that of the essence, and the material cause; for the Forms are the cause of the essence in everything else, and the One is the cause of it in the Forms. HP Pavilion dv7-4050ed Battery He also tells us what the material substrate is of which the Forms are predicated in the case of sensible things, and the One in that of the Forms - that it is this the duality (the Dyad, ἡ δυάς), the Great and Small (τὸ μέγα καὶ τὸ μικρόν). Further, he assigned to these two elements respectively the causation of good and of evil" (988 a). HP Pavilion dv7-4050ei Battery The most important aspect of this interpretation of Plato's metaphysics is the continuity between his teaching and the neoplatonic interpretation of Plotinus[47] or Ficino[48] which has been considered erroneous by many but may in fact have been directly influenced by oral transmission of Plato's doctrine. HP Pavilion dv7-4050em BatteryA modern scholar who recognized the importance of the unwritten doctrine of Plato was Heinrich Gomperz who described it in his speech during the 7th International Congress of Philosophy in 1930.[49] All the sources related to the ἄγραφα δόγματα have been collected by Konrad Gaiser and published as Testimonia Platonica. HP Pavilion dv7-4050eo Battery [50] These sources have subsequently been interpreted by scholars from the German Tübingen School such as Hans Joachim Krämer or Thomas A. Szlezák.[51] Dialectic The role of dialectic in Plato's thought is contested but there are two main interpretations; a type of reasoning and a method of intuitionHP Pavilion dv7-4050er Battery.[52] Simon Blackburn adopts the first, saying that Plato's dialectic is “the process of eliciting the truth by means of questions aimed at opening out what is already implicitly known, or at exposing the contradictions and muddles of an opponent’s position.”[53] Karl Popper, on the other hand, claims that dialectic is the art of intuition for "visualising the divine originals, the Forms or Ideas, HP Pavilion dv7-4050ev Battery of unveiling the Great Mystery behind the common man's everyday world of appearances."[54] Works Thirty-six dialogues and thirteen letters have traditionally been ascribed to Plato, though modern scholarship doubts the authenticity of at least some of these. Plato's writings have been published in several fashions; HP Pavilion dv7-4050ez Batterythis has led to several conventions regarding the naming and referencing of Plato's texts. The usual system for making unique references to sections of the text by Plato derives from a 16th century edition of Plato's works by Henricus Stephanus. An overview of Plato's writings according to this system can be found in the Stephanus pagination article. HP Pavilion dv7-4050sg Battery One tradition regarding the arrangement of Plato's texts is according to tetralogies. This scheme is ascribed by Diogenes Laertius to an ancient scholar and court astrologer to Tiberius named Thrasyllus. In the list below, HP Pavilion dv7-4050sy Batteryworks by Plato are marked (1) if there is no consensus among scholars as to whether Plato is the author, and (2) if most scholars agree that Plato is not the author of the work. Unmarked works are assumed to have been written by Plato.[55] HP Pavilion dv7-4051nr Battery I. Euthyphro, (The) Apology (of Socrates), Crito, Phaedo II. Cratylus, Theaetetus, Sophist, Statesman III. Parmenides, Philebus, (The) Symposium, Phaedrus IV. First Alcibiades (1), Second Alcibiades (2), Hipparchus (2), (The) (Rival) Lovers (2) V. Theages (2), Charmides, Laches, LysisHP Pavilion dv7-4051sg Battery VI. Euthydemus, Protagoras, Gorgias, Meno VII. (Greater) Hippias (major) (1), (Lesser) Hippias (minor), Ion, Menexenus VIII. Clitophon (1), (The) Republic, Timaeus, Critias IX. Minos (2), (The) Laws, Epinomis (2), Epistles (1). HP Pavilion dv7-4052sg Battery Part of the series on: The Dialogues of Plato Early dialogues: Apology – Charmides – Crito Euthyphro – First Alcibiades Hippias Major – Hippias Minor Ion – Laches – Lysis Transitional & middle dialogues: HP Pavilion dv7-4053cl Battery Cratylus – Euthydemus – Gorgias Menexenus – Meno – Phaedo Protagoras – Symposium Later middle dialogues: Republic – Phaedrus Parmenides – TheaetetusHP Pavilion dv7-4053eg Battery Late dialogues: Clitophon – Timaeus – Critias Sophist – Statesman Philebus – Laws Of doubtful authenticity: Axiochus – Demodocus Epinomis – Epistles – Eryxias Halcyon – Hipparchus – MinosHP Pavilion dv7-4054ca Battery On Justice – On Virtue Rival Lovers – Second Alcibiades Sisyphus – Theages This box: view talk edit The remaining works were transmitted under Plato's name, HP Pavilion dv7-4054eg Batterymost of them already considered spurious in antiquity, and so were not included by Thrasyllus in his tetralogical arrangement. These works are labelled as Notheuomenoi ("spurious") or Apocrypha. Axiochus (2), Definitions (2), Demodocus (2), Epigrams (2), Eryxias (2), Halcyon (2), On Justice (2), On Virtue (2), Sisyphus (2). Composition of the dialoguesHP Pavilion dv7-4055sf Battery No one knows the exact order Plato's dialogues were written in, nor the extent to which some might have been later revised and rewritten. Lewis Campbell was the first[56] to make exhaustive use of stylometry to prove objectively that the Critias, HP Pavilion dv7-4055sg Battery Timaeus, Laws, Philebus, Sophist, and Statesman were all clustered together as a group, while the Parmenides, Phaedrus, Republic, and Theaetetus belong to a separate group, which must be earlier (given Aristotle's statement in his Politics[57] that the Laws was written after the Republic; cf. Diogenes Laertius Lives 3.37). HP Pavilion dv7-4057ca BatteryWhat is remarkable about Campbell's conclusions is that, in spite of all the stylometric studies that have been conducted since his time, perhaps the only chronological fact about Plato's works that can now be said to be proven by stylometry is the fact that Critias, Timaeus, Laws, Philebus, Sophist, HP Pavilion dv7-4057sf Battery and Statesman are the latest of Plato's dialogues, the others earlier.[58] Increasingly in the most recent Plato scholarship, writers are skeptical of the notion that the order of Plato's writings can be established with any precision,[59] though Plato's works are still often characterized as falling at least roughly into three groups. HP Pavilion dv7-4058ca Battery [60] The following represents one relatively common such division.[61] It should, however, be kept in mind that many of the positions in the ordering are still highly disputed, and also that the very notion that Plato's dialogues can or should be "ordered" is by no means universally accepted. Among those who classify the dialogues into periods of composition, HP Pavilion dv7-4060eb BatterySocrates figures in all of the "early dialogues" and they are considered the most faithful representations of the historical Socrates.[citation needed] They include The Apology of Socrates, Charmides, Crito, Euthyphro, Ion, Laches, Less Hippias, Lysis, Menexenus, and Protagoras (often considered one of the last of the "early dialogues"). HP Pavilion dv7-4060em BatteryThree dialogues are often considered "transitional" or "pre-middle": Euthydemus, Gorgias, and Meno.[citation needed] Whereas those classified as "early dialogues" often conclude in aporia, the so-called "middle dialogues" provide more clearly stated positive teachings that are often ascribed to Plato such as the theory of forms.[citation needed] These dialogues include CratylusHP Pavilion dv7-4060si Battery, Phaedo, Phaedrus, Republic, Symposium, Parmenides, and Theaetetus.[citation needed] Proponents of dividing the dialogues into periods often consider the Parmenides and Theaetetus to come late in this period and be transitional to the next, as they seem to treat the theory of forms critically (Parmenides) or not at all (Theaetetus).[citation needed] HP Pavilion dv7-4060us Battery The remaining dialogues are classified as "late" and are generally agreed to be difficult and challenging pieces of philosophy.[citation needed] This grouping is the only one proven by stylometric analysis.[58] While looked to for Plato's "mature" answers to the questions posed by his earlier works, HP Pavilion dv7-4061nr Battery those answers are difficult to discern. Some scholars[who?] say that the theory of forms is absent from the late dialogues, its having been refuted in the Parmenides, but there isn't total consensus that the Parmenides actually refutes the theory of forms.[62] The so-called "late dialogues" include Critias, Laws, Philebus, Sophist, HP Pavilion dv7-4063ca Battery Statesman, and Timaeus.[citation needed] Narration of the dialogues Plato never presents himself as a participant in any of the dialogues, and with the exception of the Apology, there is no suggestion that he heard any of the dialogues firsthand. HP Pavilion dv7-4065dx Battery Some dialogues have no narrator but have a pure "dramatic" form (examples: Meno, Gorgias, Phaedrus, Crito, Euthyphro), some dialogues are narrated by Socrates, wherein he speaks in first person (examples: Lysis, Charmides, Republic). One dialogue, Protagoras, begins in dramatic form but quickly proceeds to Socrates' narration of a conversation he had previously with the sophist for whom the dialogue is named; HP Pavilion dv7-4065ei Batterythis narration continues uninterrupted till the dialogue's end. Two dialogues Phaedo and Symposium also begin in dramatic form but then proceed to virtually uninterrupted narration by followers of Socrates. Phaedo, an account of Socrates' final conversation and hemlock drinking, HP Pavilion dv7-4065ez Batteryis narrated by Phaedo to Echecrates in a foreign city not long after the execution took place.[63] The Symposium is narrated by Apollodorus, a Socratic disciple, apparently to Glaucon. Apollodorus assures his listener that he is recounting the story, which took place when he himself was an infant, not from his own memory, HP Pavilion dv7-4065sf Battery but as remembered by Aristodemus, who told him the story years ago. The Theaetetus is a peculiar case: a dialogue in dramatic form imbedded within another dialogue in dramatic form. In the beginning of the Theaetetus (142c-143b), Euclides says that he compiled the conversation from notes he took based on what Socrates told him of his conversation with the title character. HP Pavilion dv7-4065si Battery The rest of the Theaetetus is presented as a "book" written in dramatic form and read by one of Euclides' slaves (143c). Some scholars take this as an indication that Plato had by this date wearied of the narrated form.[64] With the exception of the Theaetetus, Plato gives no explicit indication as to how these orally transmitted conversations came to be written down. HP Pavilion dv7-4066sf Battery Trial of Socrates Main article: Trial of Socrates The trial of Socrates is the central, unifying event of the great Platonic dialogues. Because of this, Plato's Apology is perhaps the most often read of the dialogues. HP Pavilion dv7-4067sf BatteryIn the Apology, Socrates tries to dismiss rumors that he is a sophist and defends himself against charges of disbelief in the gods and corruption of the young. Socrates insists that long-standing slander will be the real cause of his demise, and says the legal charges are essentially false. Socrates famously denies being wise, and explains how his life as a philosopher was launched by the Oracle at Delphi. HP Pavilion dv7-4069wm Battery He says that his quest to resolve the riddle of the oracle put him at odds with his fellow man, and that this is the reason he has been mistaken for a menace to the city-state of Athens. If Plato's important dialogues do not refer to Socrates' execution explicitly, they allude to it, HP Pavilion dv7-4070eb Batteryor use characters or themes that play a part in it. Five dialogues foreshadow the trial: In the Theaetetus (210d) and the Euthyphro (2a–b) Socrates tells people that he is about to face corruption charges. In the Meno (94e–95a), one of the men who brings legal charges against Socrates, Anytus, warns him about the trouble he may get into if he does not stop criticizing important people. HP Pavilion dv7-4070eo Battery In the Gorgias, Socrates says that his trial will be like a doctor prosecuted by a cook who asks a jury of children to choose between the doctor's bitter medicine and the cook's tasty treats (521e–522a). In the Republic (7.517e), Socrates explains why an enlightened man (presumably himself) will stumble in a courtroom situation. HP Pavilion dv7-4070er BatteryThe Apology is Socrates' defense speech, and the Crito and Phaedo take place in prison after the conviction. In the Protagoras, Socrates is a guest at the home of Callias, son of Hipponicus, a man whom Socrates disparages in the Apology as having wasted a great amount of money on sophists' fees. Unity and diversity of the dialoguesHP Pavilion dv7-4070ez Battery Two other important dialogues, the Symposium and the Phaedrus, are linked to the main storyline by characters. In the Apology (19b, c), Socrates says Aristophanes slandered him in a comic play, and blames him for causing his bad reputation, and ultimately, his death. In the Symposium, the two of them are drinking together with other friends. HP Pavilion dv7-4070sf Battery The character Phaedrus is linked to the main story line by character (Phaedrus is also a participant in the Symposium and the Protagoras) and by theme (the philosopher as divine emissary, etc.) The Protagoras is also strongly linked to the Symposium by characters: all of the formal speakers at the Symposium (with the exception of Aristophanes) are present at the home of Callias in that dialogue. HP Pavilion dv7-4070us BatteryCharmides and his guardian Critias are present for the discussion in the Protagoras. Examples of characters crossing between dialogues can be further multiplied. The Protagoras contains the largest gathering of Socratic associates. In the dialogues Plato is most celebrated and admired for, Socrates is concerned with human and political virtue, HP Pavilion dv7-4071nr Battery has a distinctive personality, and friends and enemies who "travel" with him from dialogue to dialogue. This is not to say that Socrates is consistent: a man who is his friend in one dialogue may be an adversary or subject of his mockery in another. For example, Socrates praises the wisdom of Euthyphro many times in the Cratylus, but makes him look like a fool in the Euthyphro. He disparages sophists generally, HP Pavilion dv7-4073ca Batteryand Prodicus specifically in the Apology, whom he also slyly jabs in the Cratylus for charging the hefty fee of fifty drachmas for a course on language and grammar. However, Socrates tells Theaetetus in his namesake dialogue that he admires Prodicus and has directed many pupils to him. Socrates' ideas are also not consistent within or between or among dialogues. HP Pavilion dv7-4073nr Battery Platonic scholarship Although their popularity has fluctuated over the years, the works of Plato have never been without readers since the time they were written.[65] Plato's thought is often compared with that of his most famous student, HP Pavilion dv7-4074ca BatteryAristotle, whose reputation during the Western Middle Ages so completely eclipsed that of Plato that the Scholastic philosophers referred to Aristotle as "the Philosopher". However, in the Byzantine Empire, the study of Plato continued. The Medieval scholastic philosophers did not have access to the works of PlatoHP Pavilion dv7-4075sb Battery, nor the knowledge of Greek needed to read them. Plato's original writings were essentially lost to Western civilization until they were brought from Constantinople in the century of its fall, by George Gemistos Plethon. It is believed that Plethon passed a copy of the Dialogues to Cosimo de' Medici when in 1438 the Council of Ferrara, HP Pavilion dv7-4075sf Battery called to unify the Greek and Latin Churches, was adjourned to Florence, where Plethon then lectured on the relation and differences of Plato and Aristotle, and fired Cosimo with his enthusiasm.[citation needed] Medieval scholars knew of Plato only through translations into Latin from the translations into Arabic by Persian and Arab scholars. HP Pavilion dv7-4077cl BatteryThese scholars not only translated the texts of the ancients, but expanded them by writing extensive commentaries and interpretations on Plato's and Aristotle's works (see Al-Farabi, Avicenna, Averroes). Only in the Renaissance, HP Pavilion dv7-4078ca Batterywith the general resurgence of interest in classical civilization, did knowledge of Plato's philosophy become widespread again in the West. Many of the greatest early modern scientists and artists who broke with Scholasticism and fostered the flowering of the Renaissance, with the support of the Plato-inspired Lorenzo de Medici, HP Pavilion dv7-4080er Battery saw Plato's philosophy as the basis for progress in the arts and sciences. By the 19th century, Plato's reputation was restored, and at least on par with Aristotle's. Notable Western philosophers have continued to draw upon Plato's work since that time. HP Pavilion dv7-4080sb Battery Plato's influence has been especially strong in mathematics and the sciences. He helped to distinguish between pure and applied mathematics by widening the gap between "arithmetic", now called number theory and "logistic", now called arithmetic. He regarded logistic as appropriate for business men and men of war who "must learn the art of numbers or he will not know how to array his troops," HP Pavilion dv7-4080ss Battery while arithmetic was appropriate for philosophers "because he has to arise out of the sea of change and lay hold of true being."[66] Plato's resurgence further inspired some of the greatest advances in logic since Aristotle, primarily through Gottlob Frege and his followers Kurt Gödel, Alonzo Church, and Alfred Tarski; HP Pavilion dv7-4080us Battery the last of these summarised his approach by reversing the customary paraphrase of Aristotle's famous declaration of sedition from the Academy (Nicomachean Ethics 1096a15), from Amicus Plato sed magis amica veritas ("Plato is a friend, but truth is a greater friend") to Inimicus Plato sed magis inimica falsitas ("Plato is an enemy, but falsehood is a greater enemy"). HP Pavilion dv7-4083cl BatteryAlbert Einstein drew on Plato's understanding of an immutable reality that underlies the flux of appearances for his objections to the probabilistic picture of the physical universe propounded by Niels Bohr in his interpretation of quantum mechanics.[citation needed] Conversely, thinkers that diverged from ontological models and moral ideals in their own philosophy, HP Pavilion dv7-4085eb Battery have tended to disparage Platonism from more or less informed perspectives. Thus Friedrich Nietzsche attacked Plato's moral and political theories, Martin Heidegger argued against Plato's alleged obfuscation of Being, and Karl Popper argued in The Open Society and Its Enemies (1945) that Plato's alleged proposal for a government system in the Republic was prototypically totalitarian. HP Pavilion dv7-4085es Battery Leo Strauss is considered by some as the prime thinker involved in the recovery of Platonic thought in its more political, and less metaphysical, form. Deeply influenced by Nietzsche and Heidegger, Strauss nonetheless rejects their condemnation of Plato and looks to the dialogues for a solution to what all three thinkers acknowledge as 'the crisis of the West.'HP Pavilion dv7-4085sf Battery Textual sources and history The texts of Plato as received today apparently represent the complete written philosophical work of Plato and are generally good by the standards of textual criticism. HP Pavilion dv7-4087cl Battery [67] No modern edition of Plato in the original Greek represents a single source, but rather it is reconstructed from multiple sources which are compared with each other. These sources are medieval manuscripts written on vellum (mainly from 9th-13th century AD Byzantium), papyri (mainly from late antiquity in Egypt), HP Pavilion dv7-4090ca Battery and from the independent testimonia of other authors who quote various segments of the works (which come from a variety of sources). The text as presented is usually not much different than what appears in the Byzantine manuscripts, and papyri and testimonia just confirm the manuscript tradition. HP Pavilion dv7-4090eb Battery In some editions however the readings in the papyri or testimonia are favoured in some places by the editing critic of the text. In the first century AD, Thrasyllus of Mendes had compiled and published the works of Plato in the original Greek, both genuine and spurious. While it has not survived to the present day, HP Pavilion dv7-4090es Battery all the extant medieval Greek manuscripts are based on his edition.[68] The oldest surviving complete manuscript for many of the dialogues is the Clarke Plato (Codex Oxoniensis Clarkianus 39, or Codex Boleianus MS E.D. Clarke 39), which was written in Constantinople in 895 and acquired by Oxford University in 1809HP Pavilion dv7-4090sf Battery.[69] The Clarke is given the siglum B in modern editions. B contains the first six tetralogies and is described internally as being written by "John the Calligrapher" on behalf of Arethas of Caesarea. It appears to have undergone corrections by Arethas himself.[70] For the last two tetralogies and the apocrypha, the oldest surviving complete manuscript is Codex Parisinus graecus 1807, HP Pavilion dv7-4091sf Batterydesignated A, which was written nearly contemporaneously to B, circa 900 AD.[71] A probably had an initial volume containing the first 7 tetralogies which is now lost, but of which a copy was made, Codex Venetus append. class. 4, 1, which has the siglum T. The oldest manuscript for the seventh tetralogy is Codex Vindobonensis 54. suppl. phil. Gr. 7, with siglum W, HP Pavilion dv7-4095eb Batterywith a supposed date in the twelfth century.[72] In total there are fifty-one such Byzantine manuscripts known, while others may yet be found.[73] To help establish the text, the older evidence of papyri and the independent evidence of the testimony of commentators and other authors (i.e, those who quote and refer to an old text of Plato which is so longer extant) are also used. HP Pavilion dv7-4100 BatteryMany papyri which contain fragments of Plato's texts are among the Oxyrhynchus Papyri. The 2003 Oxford Classical Texts edition by Slings even cites the Coptic translation of a fragment of the Republic in the Nag Hammadi library as evidence.[74] Important authors for testimony include Olympiodorus the Younger, HP Pavilion dv7-4105TX Battery Plutarch, Proclus, Iamblichus, Eusebius, and Stobaeus. During the early Renaissance, the Greek language and, along with it, Plato's texts were reintroduced to Western Europe by Byzantine scholars. In 1483 there was published a Latin edition of Plato's complete works translated by Marsilio Ficino at the behest of Cosimo de' Medici. HP Pavilion dv7-4106TX Battery [75] Cosimo had been influenced toward studying Plato by the many Byzantine Platonists in Florence during his day, including George Gemistus Plethon. Henri Estienne's edition, including parallel Greek and Latin, was published in 1578. It was this edition which established Stephanus pagination, still in use today.[76] HP Pavilion dv7-4130sa Battery Modern editions The Oxford Classical Texts offers the current standard complete Greek text of Plato's complete works. In five volumes edited by John Burnet, its first edition was published 1900-1907, HP Pavilion dv7-4131sa Battery and it is still available from the publisher, having last been printed in 1993.[77][78] The second edition is still in progress with only the first volume, printed in 1995, and the Republic, printed in 2003, available. The Cambridge Greek and Latin Texts and Cambridge Classical Texts and Commentaries series includes Greek editions of the Protagoras, HP Pavilion dv7-4140ea BatterySymposium, Phaedrus, Alcibiades, and Clitophon, with English philological, literary, and, to an extent, philosophical commentary.[79][80] One distinguished edition of the Greek text is E. R. Dodds' of the Gorgias, which includes extensive English commentary.[81][82] The modern standard complete English edition is the 1997 Hackett Plato, HP Pavilion dv7-4142eo Battery Complete Works, edited by John M. Cooper.[83][84] For many of these translations Hackett offers separate volumes which include more by way of commentary, notes, and introductory material.[85] There is also the Clarendon Plato Series by Oxford University Press which offers English translations and thorough philosophical commentary by leading scholars on a few of Plato's works, HP Pavilion dv7-4150ea Battery including John McDowell's version of the Theaetetus.[86] Cornell University Press has also begun the Agora series of English translations of classical and medieval philosophical texts, including a few of Plato's.[87] Criticism Carl Sagan said of Plato: "Science and mathematics were to be removed from the hands of the merchants and the artisansHP Pavilion dv7-4170eo Battery. This tendency found its most effective advocate in a follower of Pythagoras named Plato." and: "He (Plato) believed that ideas were far more real than the natural world. He advised the astronomers not to waste their time observing the stars and planets. It was better, he believed, just to think about them. Plato expressed hostility to observation and experiment. HP Pavilion dv7-4180ea BatteryHe taught contempt for the real world and disdain for the practical application of scientific knowledge. Plato's followers succeeded in extinguishing the light of science and experiment that had been kindled by Democritus and the other Ionians."[88] Platonic AcademyHP Pavilion dv7-6000 Battery The Academy (Ancient Greek: Ἀκαδήμεια) was founded by Plato in ca. 387 BC in Athens. Aristotle studied there for twenty years (367 BC - 347 BC) before founding his own school, the Lyceum. The Academy persisted throughout the Hellenistic period as a skeptical school, until coming to an end after the death of Philo of Larissa in 83 BC. HP Pavilion dv7-6000sg Battery Although philosophers continued to teach Plato's philosophy in Athens during the Roman era, it was not until AD 410 that a revived Academy was re-established as a center for Neoplatonism, persisting until 529 AD when it was finally closed down by Justinian I. SiteHP Pavilion dv7-6001sg Battery Before the Akademia was a school, and even before Cimon enclosed its precincts with a wall,[1] it contained a sacred grove of olive trees dedicated to Athena, the goddess of wisdom, outside the city walls of ancient Athens.[2] The archaic name for the site was Hekademia (Ἑκαδήμεια), HP Pavilion dv7-6001xx Batterywhich by classical times evolved into Akademia and was explained, at least as early as the beginning of the 6th century BC, by linking it to an Athenian hero, a legendary "Akademos". The site of the Academy was sacred to Athena and other immortals; it had sheltered her religious cult since the Bronze Age, HP Pavilion dv7-6002sa Battery a cult that was perhaps also associated with the hero-gods the Dioscuri (Castor and Polydeuces), for the hero Akademos associated with the site was credited with revealing to the Divine Twins where Theseus had hidden Helen. Out of respect for its long tradition and the association with the Dioscuri, HP Pavilion dv7-6004ea Battery the Spartans would not ravage these original "groves of Academe" when they invaded Attica,[3] a piety not shared by the Roman Sulla, who axed the sacred olive trees of Athena in 86 BC to build siege engines. Among the religious observations that took place at the Akademeia was a torchlit night race from altars within the city to Prometheus' altar in the Akademeia. HP Pavilion dv7-6004tx BatteryFuneral games also took place in the area as well as a Dionysiac procession from Athens to the Hekademeia and then back to the polis.[4] The road to Akademeia was lined with the gravestones of Athenians. The site of the Academy was located near Colonus. The walk from Athens to the Academy was 6 stadia (1 mile) from the Dipylon gates (Kerameikos). HP Pavilion dv7-6005sg Battery The site was rediscovered in the 20th century, in modern Akadimia Platonos; considerable excavation has been accomplished and visiting the site is free.[5] [edit]Plato's Academy What was later to be known as Plato's school probably originated around the time Plato acquired inherited property at the age of thirty, HP Pavilion dv7-6005tx Battery with informal gatherings which included Theaetetus of Sunium, Archytas of Tarentum, Leodamas of Thasos, and Neoclides.[6] According to Debra Nails, Speusippus "joined the group in about 390." She claims, "It is not until Eudoxus of Cnidos arrives in the mid-380s that Eudemus recognizes a formal Academy. HP Pavilion dv7-6006sg Battery" There is no historical record of the exact time the school was officially founded, but modern scholars generally agree that the time was the mid-380s, probably sometime after 387, when Plato is thought to have returned from his first visit to Italy and Sicily.[7] Originally, HP Pavilion dv7-6007sg Batterythe location of the meetings was Plato's property as often as it was the nearby Academy gymnasium; this remained so throughout the fourth century.[8] Though the Academic club was exclusive, not open to the public,[9] it did not, during at least Plato's time, HP Pavilion dv7-6008eg Batterycharge fees for membership.[10] Therefore, there was probably not at that time a "school" in the sense of a clear distinction between teachers and students, or even a formal curriculum.[11] There was, however, a distinction between senior and junior members.[12] In at least Plato's time, HP Pavilion dv7-6008sg Battery the school did not have any particular doctrine to teach; rather, Plato (and probably other associates of his) posed problems to be studied and solved by the others.[13] There is evidence of lectures given, most notably Plato's lecture "On the Good"; but probably the use of dialectic was more common. HP Pavilion dv7-6011sg Battery [14] Above the entrance to the Academy was inscribed the phrase "Let None But Geometers Enter Here." Many have imagined that the Academic curriculum would have closely resembled the one canvassed in Plato's Republic.[15] Others, however, HP Pavilion dv7-6011tx Batteryhave argued that such a picture ignores the obvious peculiar arrangements of the ideal society envisioned in that dialogue.[16] The subjects of study almost certainly included mathematics as well as the philosophical topics with which the Platonic dialogues deal, HP Pavilion dv7-6012eg Batterybut there is little reliable evidence.[17] There is some evidence for what today would be considered strictly scientific research: Simplicius reports that Plato had instructed the other members to discover the simplest explanation of the observable, irregular motion of heavenly bodies: "by hypothesizing what uniform and ordered motions is it possible to save the appearances relating to planetary motions." HP Pavilion dv7-6012sg Battery [18] (According to Simplicius, Plato's colleague Eudoxus was the first to have worked on this problem.) Plato's Academy is often said to have been a school for would-be politicians in the ancient world, and to have had many illustrious alumni.[19] In a recent survey of the evidence, Malcolm Schofield, HP Pavilion dv7-6012tx Battery however, has argued that it is difficult to know to what extent the Academy was interested in practical (i.e., non-theoretical) politics since much of our evidence "reflects ancient polemic for or against Plato."[20] [edit]Later history of the Academy Diogenes Laërtius divided the history of the Academy into three: the Old, HP Pavilion dv7-6013eg Battery the Middle, and the New. At the head of the Old he put Plato, at the head of the Middle Academy, Arcesilaus, and of the New, Lacydes. Sextus Empiricus enumerated five divisions of the followers of Plato. He made Plato founder of the first Academy; Arcesilaus of the second; Carneades of the third; Philo and Charmadas of the fourth; HP Pavilion dv7-6013tx Battery Antiochus of the fifth. Cicero recognised only two Academies, the Old and New, and made the latter commence with Arcesilaus.[21] [edit]Old Academy Plato's immediate successors as "scholarch" of the Academy were Speusippus (347-339 BC), Xenocrates (339-314 BC), HP Pavilion dv7-6014tx BatteryPolemo (314-269 BC), and Crates (c. 269-266 BC). Other notable members of the Academy include Aristotle, Heraclides, Eudoxus, Philip of Opus, and Crantor. [edit]Middle Academy Around 266 BC Arcesilaus became scholarch. HP Pavilion dv7-6015eg Battery Under Arcesilaus (c. 266-241 BC), the Academy strongly emphasized Academic skepticism. Arcesilaus was followed by Lacydes of Cyrene (241-215 BC), Evander and Telecles (jointly) (205-c. 165 BC), and Hegesinus (c. 160 BC). [edit]New AcademyHP Pavilion dv7-6015sg Battery The New or Third Academy begins with Carneades, in 155 BC, the fourth scholarch in succession from Arcesilaus. It was still largely skeptical, denying the possibility of knowing an absolute truth. Carneades was followed by Clitomachus (129-c. 110 BC) and Philo of Larissa ("the last undisputed head of the Academy," HP Pavilion dv7-6025eg Battery c. 110-84 BC).[22][23] According to Jonathan Barnes, "It seems likely that Philo was the last Platonist geographically connected to the Academy."[24] Around 90 BC, Philo's student Antiochus of Ascalon began teaching his own rival version of Platonism rejecting Skepticism and advocating Stoicism, HP Pavilion dv7-6055ef Battery which began a new phase known as Middle Platonism. [edit]The Destruction of the Academy When the First Mithridatic War began in 88 BC, Philo of Larissa left Athens, and took refuge in Rome, HP Pavilion dv7-6055sf Batterywhere he seems to have remained until his death.[25] In 86 BC, Lucius Cornelius Sulla laid siege to Athens, and conquered the city, causing much destruction. It was during the siege that he laid waste to the Academy, for "he laid hands upon the sacred groves, and ravaged the Academy, which was the most wooded of the city's suburbs, HP Pavilion dv7-6065ef Battery as well as the Lyceum."[26] The destruction of the Academy seems to have been so severe as to make the reconstruction and re-opening of the Academy impossible.[27] When Antiochus returned to Athens from Alexandria, c. 84 BC, he resumed his teaching but not in the Academy. Cicero, HP Pavilion dv7-6065sf Battery who studied under him in 79/8 BC, refers to Antiochus teaching in a gymnasium called Ptolemy. Cicero describes a visit to the site of the Academy one afternoon, which was "quiet and deserted at that hour of the day"[28] [edit]Neoplatonic Academy Philosophers continued to teach platonism in Athens during the Roman era, HP Pavilion dv7-6070sf Battery but it was not until the early 5th century (c. 410) that a revived Academy was established by some leading Neoplatonists.[29] The origins of Neoplatonist teaching in Athens are uncertain, but when Proclus arrived in Athens in the early 430's, he found Plutarch of Athens and his colleague Syrianus teaching in an Academy there. The Neoplatonists in Athens called themselves "successors" (diadochoi, HP Pavilion dv7-6081eg Batterybut of Plato) and presented themselves as an uninterrupted tradition reaching back to Plato, but there cannot have actually been any geographical, institutional, economic or personal continuity with the original Academy.[30] The school seems to have been a private foundation, conducted in a large house which Proclus eventually inherited from Plutarch and SyrianusHP Pavilion dv7-6090sf Battery.[31] The heads of the Neoplatonic Academy were Plutarch of Athens, Syrianus, Proclus, Marinus, Isidore, and finally Damascius. The Neoplatonic Academy reached its apex under Proclus (died 485). HP Pavilion dv7-6097ef Battery The last "Greek" philosophers of the revived Academy in the 6th century were drawn from various parts of the Hellenistic cultural world and suggest the broad syncretism of the common culture (see koine): Five of the seven Academy philosophers mentioned by Agathias were Syriac in their cultural origin: Hermias and Diogenes (both from Phoenicia), HP G62-100 BatteryIsidorus of Gaza, Damascius of Syria, Iamblichus of Coele-Syria and perhaps even Simplicius of Cilicia.[30] At a date often cited as the end of Antiquity, the emperor Justinian closed the school in 529 A.D. (Justinian actually closing the school has come under some recent scrutiny[32]). The last Scholarch of the Academy was Damascius (d. 540). HP G62-100EB Battery According to the sole witness, the historian Agathias, its remaining members looked for protection under the rule of Sassanid king Khosrau I in his capital at Ctesiphon, carrying with them precious scrolls of literature and philosophy, and to a lesser degree of science. After a peace treaty between the Persian and the Byzantine empire in 532, HP G62-100EE Batterytheir personal security (an early document in the history of freedom of religion) was guaranteed. It has been speculated that the Academy did not altogether disappear.[30][33] After his exile, Simplicius (and perhaps some others), may have travelled to Harran, near Edessa. From there, HP G62-100EJ Batterythe students of an Academy-in-exile could have survived into the 9th century, long enough to facilitate the Arabic revival of the Neoplatonist commentary tradition in Baghdad.[33] One of the earliest academies established in the east was the 7th century Academy of Gundishapur in Sassanid Persia. 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