The Charmides is a dialogue of Plato, in which Socrates engages a handsome and popular boy in a conversation about the meaning of sophrosyne, a Greek word usually translated into English as "temperance", "self-control", or "restraint". As is typical with Platonic early dialogues, the two never arrive at a completely satisfactory definition, but the discussion nevertheless raises many important points.
Plato was a philosopher in Classical Greece. He was also a mathematician, student of Socrates, writer of philosophical dialogues, and founder of the Academy in Athens, the first institution of higher learning in the Western world. Along with his mentor, Socrates, and his most-famous student, Aristotle, Plato helped to lay the foundations of Western philosophy and science. Alfred North Whitehead once noted: "the safest general characterization of the European philosophical tradition is that it consists of a series of footnotes to Plato."