Abstract

Plato represents Socrates as believing in the unity of the virtues, quarreling with those who, like Protagoras or Meno, wish to treat the virtues as distinct objects of inquiry. On the other hand, there is good reason to deny that Plato's Socrates believed in the numerical identity of the virtues. What Socrates did believe, I shall argue, is that the various virtues are one in essence. I shall show what this means and how it clears up prima facie inconsistencies among Plato's early dialogues.If I am right, Socrates’ theory has startling consequences. Since essence is exactly what Socrates wants a definition to state, it follows that all virtues will have one and the same definition. And if this is so, no wonder the quest for separate definitions of virtues fails in every case! For example in the Laches the generals are baffled by Courage because Courage has no private essence and cannot be marked off from the other virtues by stating its essence. Its essence is Virtue entire. That is a radical view, but there are good reasons for attributing it to Socrates.