Abstract

In this paper I attempt to refute the instrumental conception of practical reason, and thus defend a rationalist conception of practical reason. I argue that, far from merely playing an instrumental role, reason can be used by an agent to evaluate, that is, to approve or reject, final ends, which might be suggested by desires, and further to determine final ends independently of any desires, whether actual or potential, that the agent might have. My argument relies on an analysis of the concept of intention, and, more specifically, on the distinction between want and intention. I argue that the notion of an intentional action entails that reason can be used to evaluate and determine final ends.