 Another Polish proponent of Kantism was Józef Kalasanty Szaniawski (1764–1843), who had been a student of Kant's at Königsberg.But, having accepted the fundamental points of the critical theory of knowledge, he still hesitated between Kant's metaphysical agnosticism and the new metaphysics of Idealism.Thus this one man introduced to Poland both the antimetaphysical Kant and the post-Kantian metaphysics.