 When an agent is morally responsible for doing something wrong, he is blameworthy: he deserves hard treatment marked by resentment and indignation and the actions these emotions dispose us toward, such as censure, rebuke, and ostracism. However, it would seem unfair to treat agents in these ways unless their actions were up to them. Thus, we arrive at the core connection between free will and moral responsibility: agents deserve praise or blame only if their actions are up to them—only if they have free will. Consequently, we can assess analyses of free will by their implications for judgments of moral responsibility. We note that some might reject the claim that free will is necessary for moral responsibility (e.g., Frankfurt 1971; Stump 1988), but even for these theorists an adequate analysis of free will must specify a sufficient condition for the kind of control at play in moral responsibility.