Korsgaard (1996a) offers a transcendental argument for the conclusion that what we ought to do is justified by the norms that govern and constitute our rational agency. She argues that valuing humanity, where humanity is understood as the capacity for rationality, is the condition of the possibility of valuing anything at all (Korsgaard 1996a: 121–123; Korsgaard 1998: 60–62). In deliberating, we attribute to ourselves the power to confer value on our ends by rationally choosing them. According t