Adam Cureton

Kant offers the following argument for the formula of humanity (FH): Each rational agent necessarily conceives of her own rational nature as an end in itself and does so on the same grounds as every other rational agent, so all rational agents must conceive of one another's rational nature as an end in itself. As it stands, the argument appears to be question-begging and fallacious. Drawing on resources from the formula of universal law (FUL) and Kant's claims about the primacy of duties to oneself, I propose a contractualist reconstruction of this puzzling line of reasoning

A comprehensive theory of rational prudence would explain how a person should adjudicate among the conflicting interests of her past, present, future and counterfactual selves. For example, when a person is having an identity crisis, perhaps because she has suddenly become disabled, she may be left with no sense of purpose to keep her going. In her despondent state, she may think it prudent to give up on life now even if she would soon adopt a different set of values that would give her a renewed sense of meaning. Yet we may think that, in many cases, it would be irrational for such a person to allow herself to die. My aim is to explain this prudential intuition by developing a partial framework of rational prudence that interprets and applies the idea that a prudent person acts in ways that are justifiable to herself over time.