93-482: In Plato 's The Republic , a noble lie is a myth or a lie knowingly propagated by an elite to maintain social harmony. Plato presented the noble lie (γενναῖον ψεῦδος, gennaion pseudos ) in the fictional tale known as the myth or parable of the metals in Book III . In it, Socrates provides the origin of the three social classes who compose the republic proposed by Plato. Socrates proposes and claims that if
186-543: A pitch accent . In Modern Greek, all vowels and consonants are short. Many vowels and diphthongs once pronounced distinctly are pronounced as /i/ ( iotacism ). Some of the stops and glides in diphthongs have become fricatives , and the pitch accent has changed to a stress accent . Many of the changes took place in the Koine Greek period. The writing system of Modern Greek, however, does not reflect all pronunciation changes. The examples below represent Attic Greek in
279-486: A Platonist or Pythagorean, in that such a one would have "the viewpoint of logical simplicity as an indispensable and effective tool of his research." British philosopher Alfred N. Whitehead is often misquoted of uttering the famous saying of "All of Western philosophy is a footnote to Plato." Many recent philosophers have also diverged from what some would describe as ideals characteristic of traditional Platonism. Friedrich Nietzsche notoriously attacked Plato's "idea of
372-493: A belief in the immortality of the soul, and several dialogues end with long speeches imagining the afterlife . In the Timaeus , Socrates locates the parts of the soul within the human body: Reason is located in the head, spirit in the top third of the torso , and the appetite in the middle third of the torso, down to the navel . Furthermore, Plato evinces a belief in the theory of reincarnation in multiple dialogues (such as
465-400: A descendant of two kings, Codrus and Melanthus . His mother was Perictione , descendant of Solon , a statesman credited with laying the foundations of Athenian democracy . Plato had two brothers, Glaucon and Adeimantus , a sister, Potone , and a half brother, Antiphon. Plato may have travelled to Italy, Sicily , Egypt, and Cyrene . At 40, he founded a school of philosophy,
558-489: A different doctrine with respect to Forms to Plato and Socrates. Aristotle suggests that Socrates' 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 understanding. The Socratic problem concerns how to reconcile these various accounts. The precise relationship between Plato and Socrates remains an area of contention among scholars. Although Socrates influenced Plato directly,
651-483: A fellow disciple of Plato. A variety of sources have given accounts of Plato's death. One story, based on a mutilated manuscript, suggests Plato died in his bed, whilst a young Thracian girl played the flute to him. Another tradition suggests Plato died at a wedding feast. The account is based on Diogenes Laërtius's reference to an account by Hermippus, a third-century Alexandrian. According to Tertullian , Plato simply died in his sleep. According to Philodemus, Plato
744-571: A few people were capable or interested in following a reasoned philosophical discourse, but men in general are attracted by stories and tales. Consequently, then, he used the myth to convey the conclusions of the philosophical reasoning. Notable examples include the story of Atlantis , the Myth of Er , and the Allegory of the Cave . When considering the taxonomic definition of mankind , Plato proposed
837-477: A lack of contemporaneous evidence. Several theories exist about what Hellenic dialect groups may have existed between the divergence of early Greek-like speech from the common Proto-Indo-European language and the Classical period. They have the same general outline but differ in some of the detail. The only attested dialect from this period is Mycenaean Greek , but its relationship to the historical dialects and
930-419: A lesser degree. Pamphylian Greek , spoken in a small area on the southwestern coast of Anatolia and little preserved in inscriptions, may be either a fifth major dialect group, or it is Mycenaean Greek overlaid by Doric, with a non-Greek native influence. Regarding the speech of the ancient Macedonians diverse theories have been put forward, but the epigraphic activity and the archaeological discoveries in
1023-477: 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. Some dialogues have no narrator but have a pure "dramatic" form, some dialogues are narrated by Socrates himself, who speaks in the first person. The Symposium is narrated by Apollodorus, a Socratic disciple, apparently to Glaucon. Apollodorus assures his listener that he
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#17327727847451116-513: A perfectly normal name, and "the common practice of naming a son after his grandfather was reserved for the eldest son", not Plato. According to Debra Nails, Plato's grandfather was the Aristocles who was archon in 605/4. Plato was born in Athens or Aegina , between 428 and 423 BC. He was a member of an aristocratic and influential family. His father was Ariston, who may have been
1209-550: A prefix /e-/, called the augment . This was probably originally a separate word, meaning something like "then", added because tenses in PIE had primarily aspectual meaning. The augment is added to the indicative of the aorist, imperfect, and pluperfect, but not to any of the other forms of the aorist (no other forms of the imperfect and pluperfect exist). The two kinds of augment in Greek are syllabic and quantitative. The syllabic augment
1302-608: A separate historical stage, though its earliest form closely resembles Attic Greek , and its latest form approaches Medieval Greek . There were several regional dialects of Ancient Greek; Attic Greek developed into Koine. Ancient Greek was a pluricentric language , divided into many dialects. The main dialect groups are Attic and Ionic , Aeolic , Arcadocypriot , and Doric , many of them with several subdivisions. Some dialects are found in standardized literary forms in literature , while others are attested only in inscriptions. There are also several historical forms. Homeric Greek
1395-630: A standard subject of study in educational institutions of the Western world since the Renaissance . This article primarily contains information about the Epic and Classical periods of the language, which are the best-attested periods and considered most typical of Ancient Greek. From the Hellenistic period ( c. 300 BC ), Ancient Greek was followed by Koine Greek , which is regarded as
1488-419: A tripartite class structure corresponding to the appetite/spirit/reason structure of the individual soul. The appetite/spirit/reason are analogous to the castes of society. According to Socrates, a state made up of different kinds of souls will, overall, decline from an aristocracy (rule by the best) to a timocracy (rule by the honourable), then to an oligarchy (rule by the few), then to a democracy (rule by
1581-510: A vowel or /n s r/ ; final stops were lost, as in γάλα "milk", compared with γάλακτος "of milk" (genitive). Ancient Greek of the classical period also differed in both the inventory and distribution of original PIE phonemes due to numerous sound changes, notably the following: The pronunciation of Ancient Greek was very different from that of Modern Greek . Ancient Greek had long and short vowels ; many diphthongs ; double and single consonants; voiced, voiceless, and aspirated stops ; and
1674-493: Is a central figure in the history of Western philosophy . Plato's entire body of work is believed to have survived intact for over 2,400 years—unlike that of nearly all of his contemporaries. Although their popularity has fluctuated, they have consistently been read and studied through the ages. Through Neoplatonism , he also greatly influenced both Christian and Islamic philosophy . In modern times, Alfred North Whitehead famously said: "the safest general characterization of
1767-570: Is a literary form of Archaic Greek (derived primarily from Ionic and Aeolic) used in the epic poems , the Iliad and the Odyssey , and in later poems by other authors. Homeric Greek had significant differences in grammar and pronunciation from Classical Attic and other Classical-era dialects. The origins, early form and development of the Hellenic language family are not well understood because of
1860-418: Is added to stems beginning with consonants, and simply prefixes e (stems beginning with r , however, add er ). The quantitative augment is added to stems beginning with vowels, and involves lengthening the vowel: Some verbs augment irregularly; the most common variation is e → ei . The irregularity can be explained diachronically by the loss of s between vowels, or that of the letter w , which affected
1953-763: Is already implicitly known, or at exposing the contradictions and muddles of an opponent's position." Karl Popper , on the other hand, claims that dialectic is the art of intuition for "visualising the divine originals, the Forms or Ideas, of unveiling the Great Mystery behind the common man's everyday world of appearances". During the early Renaissance, the Greek language and, along with it, Plato's texts were reintroduced to Western Europe by Byzantine scholars. Some 250 known manuscripts of Plato survive. In September or October 1484 Filippo Valori and Francesco Berlinghieri printed 1025 copies of Ficino's translation, using
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#17327727847452046-482: Is also referenced by Jewish philosopher and Talmudic scholar Maimonides in his The Guide for the Perplexed . The works of Plato were again revived at the times of Islamic Golden ages with other Greek contents through their translation from Greek to Arabic. Neoplatonism was revived from its founding father, Plotinus. Neoplatonism, a philosophical current that permeated Islamic scholarship, accentuated one facet of
2139-502: Is by no means universally accepted, though Plato's works are still often characterized as falling at least roughly into three groups stylistically. Plato's unwritten doctrines are, according to some ancient sources, the most fundamental metaphysical teaching of Plato, which he disclosed only orally, and some say only to his most trusted fellows, and which he may have kept secret from the public, although many modern scholars doubt these claims. A reason for not revealing it to everyone
2232-666: Is called 'East Greek'. Arcadocypriot apparently descended more closely from the Mycenaean Greek of the Bronze Age. Boeotian Greek had come under a strong Northwest Greek influence, and can in some respects be considered a transitional dialect, as exemplified in the poems of the Boeotian poet Pindar who wrote in Doric with a small Aeolic admixture. Thessalian likewise had come under Northwest Greek influence, though to
2325-448: Is considered by some linguists to have been closely related to Greek . Among Indo-European branches with living descendants, Greek is often argued to have the closest genetic ties with Armenian (see also Graeco-Armenian ) and Indo-Iranian languages (see Graeco-Aryan ). Ancient Greek differs from Proto-Indo-European (PIE) and other Indo-European languages in certain ways. In phonotactics , ancient Greek words could end only in
2418-730: Is hard to understand why those of Plato's commentators who praise him for fighting against the subversive conventionalism of the Sophists, and for establishing a spiritual naturalism ultimately based on religion, fail to censure him for making a convention, or rather an invention, the ultimate basis of religion." Religion for Plato is a noble lie, at least if we assume that Plato meant all of this sincerely, not cynically. Popper finds Plato's conception of religion to have been very influential in subsequent thought. Plato Plato ( / ˈ p l eɪ t oʊ / PLAY -toe ; Greek : Πλάτων, Plátōn , born c. 428-423 BC, died 348 BC),
2511-502: Is partially discussed in Phaedrus where Plato criticizes the written transmission of knowledge as faulty, favouring 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." It is, however, said that Plato once disclosed this knowledge to
2604-412: Is recounting the story, which took place when he himself was an infant, not from his own memory, but as remembered by Aristodemus, who told him the story years ago. The Theaetetus is also a peculiar case: a dialogue in dramatic form embedded within another dialogue in dramatic form. Some scholars take this as an indication that Plato had by this date wearied of the narrated form. In most of the dialogues,
2697-482: Is virtue. In the Republic , Plato poses the question, "What is justice?" and by examining both individual justice and the justice that informs societies, Plato is able not only to inform metaphysics, but also ethics and politics with the question: "What is the basis of moral and social obligation?" Plato's well-known answer rests upon the fundamental responsibility to seek wisdom, wisdom which leads to an understanding of
2790-535: The Gorgias and his ambivalence toward rhetoric expressed in the Phaedrus . But other contemporary researchers contest the idea that Plato despised rhetoric and instead view his dialogues as a dramatization of complex rhetorical principles. Plato made abundant use of mythological narratives in his own work; It is generally agreed that the main purpose for Plato in using myths was didactic. He considered that only
2883-538: The Laws features Socrates, although many dialogues, including the Timaeus and Statesman , feature him speaking only rarely. Leo Strauss notes that Socrates' reputation for irony casts doubt on whether Plato's Socrates is expressing sincere beliefs. Xenophon 's Memorabilia and Aristophanes 's The Clouds seem to present a somewhat different portrait of Socrates from the one Plato paints. Aristotle attributes
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2976-657: The Republic was prototypically totalitarian ; this has been disputed. Edmund Gettier famously demonstrated the Gettier problem for the justified true belief account of knowledge. That the modern theory of justified true belief as knowledge, which Gettier addresses, is equivalent to Plato's is, however, accepted only by some scholars but rejected by others. Primary sources (Greek and Roman) Secondary sources Ancient Greek language Ancient Greek ( Ἑλληνῐκή , Hellēnikḗ ; [hellɛːnikɛ́ː] ) includes
3069-614: The Academy . It was located in Athens, on a plot of land in the Grove of Hecademus or Academus , named after an Attic hero in Greek mythology . The Academy operated until it was destroyed by Sulla in 84 BC. Many philosophers studied at the Academy, the most prominent being Aristotle. According to Diogenes Laërtius , throughout his later life, Plato became entangled with the politics of
3162-708: The Greek region of Macedonia during the last decades has brought to light documents, among which the first texts written in Macedonian , such as the Pella curse tablet , as Hatzopoulos and other scholars note. Based on the conclusions drawn by several studies and findings such as Pella curse tablet , Emilio Crespo and other scholars suggest that ancient Macedonian was a Northwest Doric dialect , which shares isoglosses with its neighboring Thessalian dialects spoken in northeastern Thessaly . Some have also suggested an Aeolic Greek classification. The Lesbian dialect
3255-522: The Herculaneum papyri , corroborates the claim that Plato was named for his "broad forehead". Seneca the Younger , writing hundreds of years after Plato's death, writes "His very name was given him because of his broad chest." According to the traditional story, Plato was originally named after his paternal grandfather, supposedly called Aristocles; the name "Plato" was only used as a nickname; and
3348-531: 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, who could not have otherwise known the fact (due to the slave boy's lack of education). The knowledge must be of, Socrates concludes, an eternal, non-perceptible Form. Plato also discusses several aspects of epistemology . In several dialogues, Socrates inverts
3441-452: The Phaedo and Timaeus ). Scholars debate whether he intends the theory to be literally true, however. He uses this idea of reincarnation to introduce the concept that knowledge is a matter of recollection of things acquainted with before one is born, and not of observation or study. Keeping with the theme of admitting his own ignorance, Socrates regularly complains of his forgetfulness. In
3534-606: The Renaissance , George Gemistos Plethon brought Plato's original writings to Florence from Constantinople in the century of its fall. Many of the greatest early modern scientists and artists who broke with Scholasticism , with the support of the Plato-inspired Lorenzo (grandson of Cosimo), saw Plato's philosophy as the basis for progress in the arts and sciences. The 17th century Cambridge Platonists , sought to reconcile Plato's more problematic beliefs, such as metempsychosis and polyamory, with Christianity. By
3627-773: The Scholastic philosophers referred to Aristotle as "the Philosopher". The only Platonic work known to western scholarship was Timaeus , until translations were made after the fall of Constantinople , which occurred during 1453. However, the study of Plato continued in the Byzantine Empire , the Caliphates during the Islamic Golden Age , and Spain during the Golden age of Jewish culture . Plato
3720-627: The justified true belief definition in the Theaetetus , concluding that justification (or an "account") would require knowledge of difference , meaning that the definition of knowledge is circular . In the Sophist , Statesman , Republic , Timaeus , and the Parmenides , Plato associates knowledge with the apprehension of unchanging Forms and their relationships to one another (which he calls "expertise" in dialectic), including through
3813-457: The metaphysical tradition that strongly influenced Plato and continues today. Heraclitus viewed all things as continuously changing , that one cannot "step into the same river twice" due to the ever-changing waters flowing through it, and all things exist as a contraposition of opposites. According to Diogenes Laërtius, Plato received these ideas through Heraclitus' disciple Cratylus . Parmenides adopted an altogether contrary vision, arguing for
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3906-501: The present , future , and imperfect are imperfective in aspect; the aorist , present perfect , pluperfect and future perfect are perfective in aspect. Most tenses display all four moods and three voices, although there is no future subjunctive or imperative. Also, there is no imperfect subjunctive, optative or imperative. The infinitives and participles correspond to the finite combinations of tense, aspect, and voice. The indicative of past tenses adds (conceptually, at least)
3999-435: The "twin pillars of Platonism" as the theory of Forms, on the one hand, and, on the other hand, the doctrine of immortality of the soul. In the dialogues Socrates regularly asks for the meaning of a general term (e. g. justice, truth, beauty), and criticizes those who instead give him particular examples, rather than the quality shared by all examples. "Platonism" and its theory of Forms (also known as 'theory of Ideas') denies
4092-464: The 19th century, Plato's reputation was restored, and at least on par with Aristotle's. Plato's influence has been especially strong in mathematics and the sciences. Plato's resurgence further inspired some of the greatest advances in logic since Aristotle, primarily through Gottlob Frege . Albert Einstein suggested that the scientist who takes philosophy seriously would have to avoid systematization and take on many different roles, and possibly appear as
4185-571: The 1st century AD: Axiochus , Definitions , Demodocus , Epigrams , Eryxias , Halcyon , On Justice , On Virtue , Sisyphus . 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. The works are usually grouped into Early (sometimes by some into Transitional ), Middle , and Late period; The following represents one relatively common division amongst developmentalist scholars. Whereas those classified as "early dialogues" often conclude in aporia ,
4278-1031: The 5th century BC. Ancient pronunciation cannot be reconstructed with certainty, but Greek from the period is well documented, and there is little disagreement among linguists as to the general nature of the sounds that the letters represent. /oː/ raised to [uː] , probably by the 4th century BC. Greek, like all of the older Indo-European languages , is highly inflected. It is highly archaic in its preservation of Proto-Indo-European forms. In ancient Greek, nouns (including proper nouns) have five cases ( nominative , genitive , dative , accusative , and vocative ), three genders ( masculine , feminine , and neuter ), and three numbers (singular, dual , and plural ). Verbs have four moods ( indicative , imperative , subjunctive , and optative ) and three voices (active, middle, and passive ), as well as three persons (first, second, and third) and various other forms. Verbs are conjugated through seven combinations of tenses and aspect (generally simply called "tenses"):
4371-495: The Archaic period of ancient Greek (see Homeric Greek for more details): Μῆνιν ἄειδε, θεά, Πηληϊάδεω Ἀχιλῆος οὐλομένην, ἣ μυρί' Ἀχαιοῖς ἄλγε' ἔθηκε, πολλὰς δ' ἰφθίμους ψυχὰς Ἄϊδι προΐαψεν ἡρώων, αὐτοὺς δὲ ἑλώρια τεῦχε κύνεσσιν οἰωνοῖσί τε πᾶσι· Διὸς δ' ἐτελείετο βουλή· ἐξ οὗ δὴ τὰ πρῶτα διαστήτην ἐρίσαντε Ἀτρεΐδης τε ἄναξ ἀνδρῶν καὶ δῖος Ἀχιλλεύς. The beginning of Apology by Plato exemplifies Attic Greek from
4464-460: The European philosophical tradition is that it consists of a series of footnotes to Plato." There is a traditional story that Plato ( ‹See Tfd› Greek : Πλάτων , Plátōn , from Ancient Greek : πλατύς , romanized : platys , lit. 'broad') is a nickname . According to Diogenes Laërtius, writing hundreds of years after Plato's death, his birth name
4557-755: The Form of the Good. Plato views "The Good" as the supreme Form, somehow existing even "beyond being". In this manner, justice is obtained when knowledge of how to fulfill one's moral and political function in society is put into practice. The dialogues also discuss politics. Some of Plato's most famous doctrines are contained in the Republic as well as in the Laws and the Statesman . Because these opinions are not spoken directly by Plato and vary between dialogues, they cannot be straightforwardly assumed as representing Plato's own views. Socrates asserts that societies have
4650-564: 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], and the essence is the One ( τὸ ἕν ), since the numbers are derived from the Great and Small by participation in the One". "From this account it is clear that he only employed two causes: that of the essence, and
4743-626: The Forms were the truths of geometry , such as the Pythagorean theorem . The theory of Forms is first introduced in the Phaedo dialogue (also known as On the Soul ), wherein Socrates disputes the pluralism of Anaxagoras , then the most popular response to Heraclitus and Parmenides. For Plato, as was characteristic of ancient Greek philosophy, the soul was that which gave life. Plato advocates
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#17327727847454836-542: The Islamic context, Neoplatonism facilitated the integration of Platonic philosophy with mystical Islamic thought, fostering a synthesis of ancient philosophical wisdom and religious insight. Inspired by Plato's Republic, Al-Farabi extended his inquiry beyond mere political theory, proposing an ideal city governed by philosopher-kings . Many of these commentaries on Plato were translated from Arabic into Latin and as such influenced Medieval scholastic philosophers. During
4929-451: The Qur’anic conception of God—the transcendent—while seemingly neglecting another—the creative. This philosophical tradition, introduced by Al-Farabi and subsequently elaborated upon by figures such as Avicenna , postulated that all phenomena emanated from the divine source. It functioned as a conduit, bridging the transcendental nature of the divine with the tangible reality of creation. In
5022-550: The aorist. Following Homer 's practice, the augment is sometimes not made in poetry , especially epic poetry. The augment sometimes substitutes for reduplication; see below. Almost all forms of the perfect, pluperfect, and future perfect reduplicate the initial syllable of the verb stem. (A few irregular forms of perfect do not reduplicate, whereas a handful of irregular aorists reduplicate.) The three types of reduplication are: Irregular duplication can be understood diachronically. For example, lambanō (root lab ) has
5115-419: The augment when it was word-initial. In verbs with a preposition as a prefix, the augment is placed not at the start of the word, but between the preposition and the original verb. For example, προσ(-)βάλλω (I attack) goes to προσ έ βαλoν in the aorist. However compound verbs consisting of a prefix that is not a preposition retain the augment at the start of the word: αὐτο(-)μολῶ goes to ηὐ τομόλησα in
5208-486: The causation of good and of evil". The most important aspect of this interpretation of Plato's metaphysics is the continuity between his teaching and the Neoplatonic interpretation of Plotinus or Ficino which has been considered erroneous by many but may in fact have been directly influenced by oral transmission of Plato's doctrine. A modern scholar who recognized the importance of the unwritten doctrine of Plato
5301-438: The center of Greek scholarship, this division of people and language is quite similar to the results of modern archaeological-linguistic investigation. One standard formulation for the dialects is: West vs. non-West Greek is the strongest-marked and earliest division, with non-West in subsets of Ionic-Attic (or Attic-Ionic) and Aeolic vs. Arcadocypriot, or Aeolic and Arcado-Cypriot vs. Ionic-Attic. Often non-West
5394-491: The character of a writer were attributed to that writer even when the actual author was unknown. The works taken as genuine in antiquity but are now doubted by at least some modern scholars are: Alcibiades I (*), Alcibiades II (‡), Clitophon (*), Epinomis (‡), Letters (*), Hipparchus (‡), Menexenus (*), Minos (‡), Lovers (‡), Theages (‡) The following works were transmitted under Plato's name in antiquity, but were already considered spurious by
5487-420: The city of Syracuse , where he attempted to replace the tyrant Dionysius , with Dionysius's brother-in-law, Dion of Syracuse , whom Plato had recruited as one of his followers, but the tyrant himself turned against Plato. Plato almost faced death, but was sold into slavery. Anniceris , a Cyrenaic philosopher, bought Plato's freedom for twenty minas , and sent him home. Philodemus however states that Plato
5580-484: The common man's intuition about what is knowable and what is real. Reality is unavailable to those who use their senses. Socrates says that he who sees with his eyes is blind. 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. In the Theaetetus , he says such people are eu amousoi (εὖ ἄμουσοι), an expression that means literally, "happily without
5673-547: The complete written philosophical work of Plato, based on the first century AD arrangement of Thrasyllus of Mendes . The modern standard complete English edition is the 1997 Hackett Plato: Complete Works , edited by John M. Cooper. Thirty-five dialogues and thirteen letters (the Epistles ) have traditionally been ascribed to Plato, though modern scholarship doubts the authenticity of at least some of these. Jowett mentions in his Appendix to Menexenus, that works which bore
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#17327727847455766-410: The concept of form as distinct from matter, and that the physical world is an imitation of an eternal mathematical world. These ideas were very influential on Heraclitus, Parmenides and Plato. The two philosophers Heraclitus and Parmenides , influenced by earlier pre-Socratic Greek philosophers such as Pythagoras and Xenophanes , departed from mythological explanations for the universe and began
5859-563: The dialect of Sparta ), and Northern Peloponnesus Doric (including Corinthian ). All the groups were represented by colonies beyond Greece proper as well, and these colonies generally developed local characteristics, often under the influence of settlers or neighbors speaking different Greek dialects. After the conquests of Alexander the Great in the late 4th century BC, a new international dialect known as Koine or Common Greek developed, largely based on Attic Greek , but with influence from other dialects. This dialect slowly replaced most of
5952-487: The doctrines that would later become known as Platonism . Plato's most famous contribution is the theory of forms (or ideas) , which has been interpreted as advancing a solution to what is now known as the problem of universals . He was decisively influenced by the pre-Socratic thinkers Pythagoras , Heraclitus , and Parmenides , although much of what is known about them is derived from Plato himself. Along with his teacher Socrates , and Aristotle , his student, Plato
6045-459: The famous Euthyphro dilemma in the dialogue of the same name: "Is the pious ( τὸ ὅσιον ) loved by the gods because it is pious, or is it pious because it is loved by the gods?" ( 10a ) In the Protagoras dialogue it is argued through Socrates that virtue is innate and cannot be learned, that no one does bad on purpose, and to know what is good results in doing what is good; that knowledge
6138-673: The forms of the Greek language used in ancient Greece and the ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek ( c. 1400–1200 BC ), Dark Ages ( c. 1200–800 BC ), the Archaic or Epic period ( c. 800–500 BC ), and the Classical period ( c. 500–300 BC ). Ancient Greek was the language of Homer and of fifth-century Athenian historians, playwrights, and philosophers . It has contributed many words to English vocabulary and has been
6231-544: The good itself" along with many fundamentals of Christian morality, which he interpreted as "Platonism for the masses" in Beyond Good and Evil (1886). Martin Heidegger argued against Plato's alleged obfuscation of Being in his incomplete tome, Being and Time (1927). Karl Popper argued in the first volume of The Open Society and Its Enemies (1945) that Plato's proposal for a " utopian " political regime in
6324-561: The historical Dorians . The invasion is known to have displaced population to the later Attic-Ionic regions, who regarded themselves as descendants of the population displaced by or contending with the Dorians. The Greeks of this period believed there were three major divisions of all Greek people – Dorians, Aeolians, and Ionians (including Athenians), each with their own defining and distinctive dialects. Allowing for their oversight of Arcadian, an obscure mountain dialect, and Cypriot, far from
6417-476: The historical circumstances of the times imply that the overall groups already existed in some form. Scholars assume that major Ancient Greek period dialect groups developed not later than 1120 BC, at the time of the Dorian invasions —and that their first appearances as precise alphabetic writing began in the 8th century BC. The invasion would not be "Dorian" unless the invaders had some cultural relationship to
6510-768: The idea of a changeless, eternal universe and the view that change is an illusion. Plato's most self-critical dialogue is the Parmenides , which features Parmenides and his student Zeno , which criticizes Plato's own metaphysical theories. Plato's Sophist dialogue includes an Eleatic stranger. These ideas about change and permanence, or becoming and Being, influenced Plato in formulating his theory of Forms. In Plato's dialogues, Socrates and his company of disputants had something to say on many subjects, including several aspects of metaphysics . These include religion and science, human nature, love, and sexuality. More than one dialogue contrasts perception and reality , nature and custom, and body and soul. Francis Cornford identified
6603-547: The influence of Pythagoras , or in a broader sense, the Pythagoreans, such as Archytas also appears to have been significant. Aristotle and Cicero both claimed that the philosophy of Plato closely followed the teachings of the Pythagoreans . According to R. M. Hare , this influence consists of three points: Pythagoras held that all things are number, and the cosmos comes from numerical principles. He introduced
6696-556: 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. 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
6789-405: The muses". In other words, such people are willingly ignorant, living without divine inspiration and access to higher insights about reality. Many have interpreted Plato as stating – even having been the first to write – that knowledge is justified true belief , an influential view that informed future developments in epistemology. Plato also identified problems with
6882-508: The older dialects, although the Doric dialect has survived in the Tsakonian language , which is spoken in the region of modern Sparta. Doric has also passed down its aorist terminations into most verbs of Demotic Greek . By about the 6th century AD, the Koine had slowly metamorphosed into Medieval Greek . Phrygian is an extinct Indo-European language of West and Central Anatolia , which
6975-660: 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. That apprehension of Forms is required for knowledge may be taken to cohere with Plato's theory in the Theaetetus and Meno . Indeed, the apprehension of Forms may be at the base of the account required for justification, in that it offers foundational knowledge which itself needs no account, thereby avoiding an infinite regression . Several dialogues discuss ethics including virtue and vice, pleasure and pain, crime and punishment, and justice and medicine. Socrates presents
7068-507: The people believed "this myth...[it] would have a good effect, making them more inclined to care for the state and one another." The concept of the noble lie as defined by Plato has sparked controversy among modern interpreters. Although some earlier classical scholars including Francis Cornford argued that "noble lie" was a mistranslation, Allan Bloom argued for a literal translation and interpretation of Plato's expression. In The Open Society and Its Enemies , Karl Popper remarks, "It
7161-547: The people), and finally to tyranny (rule by one person, rule by a tyrant). Several dialogues tackle questions about art, including rhetoric and rhapsody. 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, and dreaming) in the Phaedrus , and yet in the Republic wants to outlaw Homer's great poetry, and laughter as well. Scholars often view Plato's philosophy as at odds with rhetoric due to his criticisms of rhetoric in
7254-487: The perfect stem eilēpha (not * lelēpha ) because it was originally slambanō , with perfect seslēpha , becoming eilēpha through compensatory lengthening. Reduplication is also visible in the present tense stems of certain verbs. These stems add a syllable consisting of the root's initial consonant followed by i . A nasal stop appears after the reduplication in some verbs. The earliest extant examples of ancient Greek writing ( c. 1450 BC ) are in
7347-462: The philosopher could not have been named "Plato" because that name does not occur previously in his family line. Modern scholarship tends to reject the "Aristocles" story. Plato always called himself Platon . Platon was a fairly common name (31 instances are known from Athens alone), including people named before Plato was born. Robin Waterfield states that Plato was not a nickname, but
7440-469: The primary speaker is Socrates, who employs a method of questioning which proceeds by a dialogue form called 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 intuition. 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
7533-586: The printing press [ it ] at the Dominican convent of San Jacopo di Ripoli [ it ] . The 1578 edition of Plato's complete works published by Henricus Stephanus ( Henri Estienne ) in Geneva also included parallel Latin translation and running commentary by Joannes Serranus ( Jean de Serres ). It was this edition which established standard Stephanus pagination , still in use today. The text of Plato as received today apparently represents
7626-420: The processes of collection and division . 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, because the world of sense is in flux, the views therein attained will be mere opinions. Meanwhile, opinions are characterized by a lack of necessity and stability. On
7719-613: The public in his lecture On the Good ( Περὶ τἀγαθοῦ ), in which the Good ( τὸ ἀγαθόν ) is identified with the One (the Unity, τὸ ἕν ), the fundamental ontological principle. The first witness who mentions its existence is Aristotle, who in his Physics 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 ( Ancient Greek : ἄγραφα δόγματα , romanized : agrapha dogmata )." In Metaphysics he writes: "Now since
7812-695: The reality of the material world, considering it only an image or copy of the real world. According to this theory of Forms, there are these two kinds of things: the apparent world of material objects grasped by the senses, which constantly changes, and an unchanging and unseen world of Forms, grasped by reason ( λογική ). Plato's Forms represent types of things, as well as properties , patterns, and relations , which are referred to as objects. Just as individual tables, chairs, and cars refer to objects in this world, 'tableness', 'chairness', and 'carness', as well as e.g. justice , truth , and beauty refer to objects in another world. One of Plato's most cited examples for
7905-456: The so-called "middle dialogues" provide more clearly stated positive teachings that are often ascribed to Plato such as the theory of Forms. The remaining dialogues are classified as "late" and are generally agreed to be difficult and challenging pieces of philosophy. 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"
7998-517: The syllabic script Linear B . Beginning in the 8th century BC, however, the Greek alphabet became standard, albeit with some variation among dialects. Early texts are written in boustrophedon style, but left-to-right became standard during the classic period. Modern editions of ancient Greek texts are usually written with accents and breathing marks , interword spacing , modern punctuation , and sometimes mixed case , but these were all introduced later. The beginning of Homer 's Iliad exemplifies
8091-492: The term "featherless biped", and later ζῷον πολιτικόν ( zōon politikon ), a "political" or "state-building" animal ( Aristotle 's term, based on Plato's Statesman ). Diogenes the Cynic took issue with the former definition, reportedly producing a recently plucked chicken with the exclamation of "Here is Plato’s man!" (variously translated as "Behold, a man!"; "Here is a human!" etc.). Plato never presents himself as
8184-406: Was Aristocles ( Ἀριστοκλῆς ), meaning 'best reputation'. "Platon" sounds like "Platus" or "Platos", meaning "broad", and according to Diogenes' sources, Plato gained his nickname either from his wrestling coach, Ariston of Argos, who dubbed him "broad" on account of his chest and shoulders, or he gained it from the breadth of his eloquence, or his wide forehead. Philodemus , in extracts from
8277-495: Was Heinrich Gomperz who described it in his speech during the 7th International Congress of Philosophy in 1930. All the sources related to the ἄγραφα δόγματα have been collected by Konrad Gaiser and published as Testimonia Platonica . Plato's thought is often compared with that of his most famous student, Aristotle , whose reputation during the Western Middle Ages so completely eclipsed that of Plato that
8370-480: Was Aeolic. For example, fragments of the works of the poet Sappho from the island of Lesbos are in Aeolian. Most of the dialect sub-groups listed above had further subdivisions, generally equivalent to a city-state and its surrounding territory, or to an island. Doric notably had several intermediate divisions as well, into Island Doric (including Cretan Doric ), Southern Peloponnesus Doric (including Laconian ,
8463-526: Was an ancient Greek philosopher of the Classical period who is considered a foundational thinker in Western philosophy and an innovator of the written dialogue and dialectic forms. He raised problems for what became all the major areas of both theoretical philosophy and practical philosophy , and was the founder of the Platonic Academy , a philosophical school in Athens where Plato taught
8556-514: Was buried in the garden of his academy in Athens, close to the sacred shrine of the Muses. In 2024, a scroll found at Herculaneum was deciphered, that confirmed some previous theories. The papyrus says that before death Plato "retained enough lucidity to critique the musician for her lack of rhythm", and that he was buried "in his designated garden in the Academy of Athens". Plato never speaks in his own voice in his dialogues ; every dialogue except
8649-609: Was sold as a slave as early as in 404 BC, when the Spartans conquered Aegina, or, alternatively, in 399 BC, immediately after the death of Socrates. After Dionysius's death, according to Plato's Seventh Letter , Dion requested Plato return to Syracuse to tutor Dionysius II , who seemed to accept Plato's teachings, but eventually became suspicious of their motives, expelling Dion and holding Plato against his will. Eventually Plato left Syracuse and Dion would return to overthrow Dionysius and rule Syracuse, before being usurped by Callippus ,
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