The Ancient Background of Kant's Conception of Virtue

Scholars have widely assumed that the aspects of Kant’s virtue theory that nod to ancient ethics must be cashed out with reference to Aristotle. Interpreters then worry that Kant's conception of virtue as a “moral strength of will” (Doctrine of Virtue, 6:405) must be tantamount to Aristotle’s notion of “continence” (enkrateia) — the state of a person who knows the good, and acts accordingly, but must overcome strong countervailing impulses in order to do so. The result plays into caricatures of Kantian ethics as valorising a joyless standard of duty, which these Aristotelian-oriented commentators (rightly) wish to resist. However, the worry is misplaced. I show that Kant is not thinking about Aristotle here, but is instead engaged with a specifically Stoic approach to ethics as a dimension of natural teleology. I draw on this context to show that Kant’s virtue-as-strength idea is not marred in the ways it appears to be when read through an Aristotelian lens.