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Plato

(Encyclopedia)Plato plāˈtō [key], 427?–347 b.c., Greek philosopher. Plato's teachings have been among the most influential in the history of Western civilization. Many of the late dialogues are devoted to te...

Academy

(Encyclopedia)Academy, school founded by Plato near Athens c.387 b.c. It took its name from the garden (named for the hero Academus) in which it was located. Plato's followers met there for nine centuries until, al...

Gemistus Pletho, Georgius

(Encyclopedia)Gemistus Pletho, Georgius jôrˈjəs jĭmĭsˈtəs plēˈthō [key], c.1355–1452, Byzantine scholar and philosopher, b. Constantinople. He represented the Orthodox Eastern Church at the Council of F...

Critias

(Encyclopedia)Critias krĭshˈēəs, krĭtēəs [key], c.460–403 b.c., Athenian political leader and writer. A relative of Plato, he was an aristocrat and had early training in philosophy with Socrates and wrote ...

Atlantis

(Encyclopedia)Atlantis ətlăntĭs, ăt– [key], in Greek legend, large island in the western sea (the Atlantic Ocean). Plato, in his dialogues the Timaeus and the Critias, tells of the high civilization that flou...

dualism

(Encyclopedia)dualism, any philosophical system that seeks to explain all phenomena in terms of two distinct and irreducible principles. It is opposed to monism and pluralism. In Plato's philosophy there is an ulti...

Iamblichus

(Encyclopedia)Iamblichus īămˈblĭkəs [key], d. c.330, Syrian philosopher, a leading exponent of Neoplatonism. A pupil of Porphyry, he was deeply impressed by the doctrines of Plotinus. In his own teachings he c...

Dionysius the Younger

(Encyclopedia)Dionysius the Younger, fl. 368–344 b.c., tyrant of Syracuse, son of Dionysius the Elder. He ended the war with Carthage and enlisted the support of the professional army. Neither gifted nor trained ...

Agathon

(Encyclopedia)Agathon ăgˈəthŏn [key], c.450–c.400 b.c., Athenian tragedian. Plato's Symposium has as its scene the celebration of Agathon's first dramatic victory. Less than 40 lines of his work survive. ...

Zoilus

(Encyclopedia)Zoilus zōˈĭləs [key], c.400–c.320 b.c., Greek rhetorician and philosopher of Amphipolis. He is called Homeromastix [scourge of Homer], because of his denunciations of Homer as a purveyor of fabl...