Much critical attention has been given to Alan Gewirth’s argument concerning agents’ move from prudential to moral right-claims. Less ink has been spilled on the question of why prudent agents should claim rights to goods needed by agents in general rather than to goods needed for the realization of their individual and particular purposes. In this paper, I intend to show that Gewirth’s concept of prudence makes it necessary for agents to identify with the role of a generic agent and that this identification provides them with rationally valid reasons not only to claim prudential rights to freedom and well-being but also to recognize a moral principle stating that all agents have these rights. More generally, my argument points to the central role played by the concept of prudence in his theory.