End in Itself, Freedom, and Autonomy: The Place of the Naturrecht Feyerabend in Kant’s Moral Rationalism

The chapter deals with the two most distinctive elements of the Introduction of the Naturrecht Feyerabend, namely the notions of an end in itself and autonomy. I shall argue that both are to be interpreted with regard to the aim of explaining the ground of right. In this light, I suggest that the notion of an end in itself counters a voluntarist conception like Achenwall’s with a claim whose necessity has a twofold ground: First, the representation of an unconditional worth emerges as a structural element of the practical use of reason. Second, that representation concerns the necessary self-understanding of moral subjects. Finally, I argue that the other distinctive element, the occurrence of the notion of autonomy, is best understood as an application of that idea to a specific issue, which Kant addresses by showing that freedom is a self-regulating domain.