Abstract

Can Plato’s ethical theory account for the goodness of actions? Plato’s Form of the Good is regarded as the ultimate explanatory principle of all good things, which presumably includes good actions. And this is indeed a standard view. However, in this paper I argue that the theory of the Form of the Good cannot explain the goodness of actions. This is a highly contested claim because, if it is accurate, it suggests that there is a significant deficit in Plato’s theory of the Form of the Good - the transcendent principle of all goodness. The success of this thesis may seem to be bad news for Plato, for if the transcendent principle of all goodness fails to account for the goodness of actions, something seems to be awry in Plato’s ethical theory. However, not all is lost. In the second part of this paper, I argue that Plato’s ethical theory is nonetheless viable, because Plato has another, distinct type of explanation that does the explanatory work that the Form of the Good cannot do. This is what I call the Platonic Teleological Explanation, Plato’s own version of a teleological explanation. The Platonic Teleological Explanation is not reducible to an explanation in terms of the Form of the Good; it is an independent and non-dispensable type of explanation. Ultimately, I shall argue that only the Platonic Teleological Explanation can account for the goodness of actions.