An important part of the debate about internal and external reasons has centered on ‘reactive attitudes’, or attitudes that we have towards agents in response to their behavior, of which blame is the paradigm. Some have observed in defense of Moral Rationalism, for example, that if an agent does something we consider morally wrong, then we blame (or resent) her. But blame, these philosophers claim, involves the judgment that the agent had reasons not to do what he did. Consequently blame is unwa