Abstract

In Eudemian Ethics 8.3, Aristotle treats a virtue that he calls kalokagathia, ‘nobility-and-goodness’. This virtue appears to be quite important, and he even identifies it with “perfect virtue” (1249a17). This makes it puzzling that the Nicomachean Ethics, a text that largely parallels the Eudemian Ethics, does not discuss kalokagathia at all. I argue that the reason for this difference has to do with the role that the intellectual virtue practical wisdom (phronêsis) plays in these treatises. The Nicomachean Ethics, I argue, makes use of a more expansive conception of phronêsis than does the Eudemian Ethics. Hence, the work that is done by kalokagathia in the Eudemian Ethics -- crucially, accounting for the unity of the virtues -- is done in the Nicomachean Ethics by phronêsis.