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Euclid of Megara

(Encyclopedia)Euclid of Megara mĕgˈərə [key], c.450–c.375 b.c., Greek philosopher, a disciple of Socrates and traditional founder of the Megarian school. He combined the Eleatic doctrine of the unity of being...

Abano, Pietro d'

(Encyclopedia)Abano, Pietro d' pyāˈtrō däˈbänō [key], 1250?–1316?, Italian physician and philosopher, a professor of medicine in Padua. His famous work Conciliator differentiarum was an attempt to reconcil...

Aenesidemus

(Encyclopedia)Aenesidemus ēnĕsˌĭdēˈməs [key], Greek skeptic philosopher, fl. probably 1st cent. b.c. Thought to be a native of Knossos, Crete, he taught in Alexandria. Although his writings have been lost, i...

Gallio

(Encyclopedia)Gallio (Junius Annaeus Gallio) gălˈēō [key], d. a.d. 65?, Roman proconsul in Achaea; brother of the philosopher Seneca. His name was originally Lucius Annaeus Novatus. The “Gallio Inscription,�...

Alexander of Aphrodisias

(Encyclopedia)Alexander of Aphrodisias ăfrōdĭshˈēəs [key], fl. a.d. 200, Greek Peripatetic philosopher. A celebrated ancient commentator on Aristotle, he was often called the Exegete. Among his extant writing...

Porter, Noah

(Encyclopedia)Porter, Noah, 1811–92, American educator and philosopher, b. Farmington, Conn., grad. Yale, 1831. He entered the ministry in 1836. In 1846 he became professor of moral philosophy and metaphysics at ...

Ficino, Marsilio

(Encyclopedia)Ficino, Marsilio märsēˈlyō fēchēˈnō [key], 1433–99, Italian philosopher. Under the patronage of Cosimo de' Medici, Ficino became the most influential exponent of Platonism in Italy in the 15...

Posidonius

(Encyclopedia)Posidonius pōsēdōˈnēəs [key], c.135–c.51 b.c., Greek Stoic philosopher, b. Apamea, Syria. He settled in Rhodes after extensive travels. Noted for his learning, Posidonius gave new life to Stoi...

Aristippus

(Encyclopedia)Aristippus ărĭstĭpˈəs [key], c.435–c.360 b.c., Greek philosopher of Cyrene, first of the Cyrenaics. He held pleasure to be the highest good and virtue to be identical with the ability to enjoy....

Theophrastus

(Encyclopedia)Theophrastus thēˌōfrăsˈtəs [key] [Gr.,=divinely speaking], c.372–c.287 b.c., Greek philosopher, Aristotle's successor as head of the Peripatetics. The school flourished under his leadership. H...