“A simple thing enough; just what is commonly said, that a man should be temperate and master of himself, and ruler of his own pleasures and passions.”
Socrates describes moderation as governing one’s own appetite and impulses rather than merely exercising power over other people. Callicles immediately challenges this view and praises satisfying desires without restraint. The passage is an argument in a dispute about happiness and the good life, not modern evidence about psychology or a claim that feelings should be suppressed.
Source details
Plato, Gorgias, approximately Stephanus 491d–e, Socrates answering Callicles’s question about ruling oneself. Callicles promptly disputes the value of temperance. Full sentence in Benjamin Jowett’s English translation, Project Gutenberg #1672, within the Gorgias dialogue proper (not Jowett’s introductory essay). Socrates is the local dramatic speaker; the line is not Plato’s autobiographical speech. An ancient ethical argument, not experimental mental-health evidence.