Although Schopenhauer regarded himself as Kant’s true successor, denouncing Fichte, Schelling, and Hegel for having been philosophically unfaithful to Kant’s central insights, he was not uncritical of Kant. In in a lengthy appendix to the first volume of The World as Will and Representation , entitled “Critique of the Kantian Philosophy,” he set forth his differences with Kant’s epistemology, ethics, and aesthetics in a comprehensive survey.