Duncan MacIntosh has argued that David Gauthier's notion of a constrained maximization disposition faces a dilemma. For if such a disposition is revocable, it is no longer rational come the time to act on it, and so acting on it is not (as Gauthier argues) rational; but if it is not revocable, acting on it is not voluntary. This paper is a response to MacIntosh's dilemma. I introduce an account of rational intention of a type which has become increasingly and (...) independently prominent in the literature, and argue that, on this account, rational and voluntary constraint is possible. (shrink)