Abstract
In this paper I present criticism of Rosalind Hursthouse’s neo-Aristotelian naturalistic virtue ethics as elaborated in her book On Virtue Ethics. I argue that her theory is vulnerable to the charge of partially collapsing into a form of consequentialism that falls prey to a powerful objection to that theory: the problem of instrumentally successful action (or, in Hursthouse’s case, the problem of instrumentally successful vice). I consider several possible responses from Hursthouse, and argue that they are inadequate. As a result, Hursthouse must either accept the likelihood that highly morally counterintuitive traits can, for some persons or circumstances, be virtues; or she must defend the implausible notions that human nature and flourishing are more or less invariable. As both of these options are undesirable, it may be best to reject Hursthouse’s form of neo-Aristotelianism altogether.