In this book a case is made for an important voice we missed in the Kantian composition of our recent philosophical past: the voice of skepticism. It is introduced by means of an analysis of the work of an almost completely neglected early critic of Kant, Salomon Maimon (1752-1800).

It is argued that the work of Maimon provides powerful arguments for the claim that the structure of our articulations of the relation between thoughts and objects has an intrinsically aporetic character.