Plato was self-taught.
Plato ( [ ˈpleɪtoʊ ] Greek : Πλάτων Plátōn , [ plá.tɔːn ] in Classical Attic ; 428/427 or 424/423 -- 348/347 BCE ) was a philosopher in Classical Greece and the founder of the Academy in Athens , the first institution of higher learning in the Western world . Along with his teacher , Socrates , and his most famous student , Aristotle , Plato laid the very foundations of Western philosophy and science . But he was so self-conscious about how philosophy should be conceived , and what its scope and ambitions properly are , and he so transformed the intellectual currents with which he grappled , that the subject of philosophy , as it is often conceived -- a rigorous and systematic examination of ethical , political , metaphysical , and epistemological issues , armed with a distinctive method -- can be called his invention .