Summary |
Socrates did not establish a formal school (Apology, 33A-B); however, his method of inquiry and distinctive ethical focus inspired numerous disciples, whose contributions profoundly shaped the evolution of philosophical traditions in Antiquity. Among these influential figures, Antisthenes (c. 445–365 BCE), a rival of Plato, emerged as a key progenitor of what later became known as the Cynic school, thereby influencing a lineage that included Diogenes of Sinope (c. 412–323 BCE), Crates of Thebes (c. 365–285 BCE), Hipparchia (c. 350–280 BCE), and her disciple Metrocles of Maroneia (c. 325 BCE, dates uncertain). This intellectual continuum, beginning with Socrates and continuing through Antisthenes, Diogenes, Crates, and eventually Zeno of Citium, laid the groundwork for Stoicism. In parallel, Aristippus of Cyrene (c. 435–356 BCE) is credited with founding the Cyrenaic school, with its focus on the pursuit of pleasure as the highest good. This focus was later refined by Hegesias the Pessimist (c. 320 BCE), Euhemerus (a friend of King Cassander, c. 317–297 BCE), and Theodorus the Atheist (c. 340–250 BCE). Similarly, Euclides of Megara (c. 450–380 BCE) established the Megarian school, which produced prominent thinkers such as Eubulides, Diodorus Cronus, and Stilpo. Phaedo of Elis (fl. c. 4th century BCE) founded the Elean-Eretrian school, with Menedemus of Eretria (c. 345–260 BCE). Later philosophical traditions absorbed these ideas. The Cyrenaics influenced Epicureanism, while the Megarians contributed significantly to Stoicism, as evidenced by Zeno’s indebtedness to Diodorus Cronus and Crates. As Diogenes Laërtius noted on three occasions (VI 2, 14, and 15), Antisthenes played a role in the emergence of both Cynicism and Stoicism. |