Abstract

In this paper I argue that David Gauthier’s answer to the Why be moral? question fails. My argument concedes the possibility of constrained maximization in all the senses Gauthier intends and does not rely on the claim that it is better to masquerade as a constrained maximizer than to be one. Instead, I argue that once a constrained maximizer in the guise of "economic man" is transformed through an affective commitment to morality into a constrained maximizer in the guise of the "liberal individual," then a purely rational justification for morality must become invisible to the latter. If I can show this, then I can show that rational justification can have no motivational power for the "liberal individual" and that Gauthier fails to answer the problem of moral motivation.