Descartes' Erkenntnistheorie: Eine Studie zur Vorgeschichte des Kriticismus (1882) by Paul Natorp is a German-language book that explores the epistemology of Ren����� Descartes, a French philosopher who is widely regarded as the father of modern philosophy. The book examines Descartes' theory of knowledge, which is based on the idea of radical doubt and the search for certainty through reason. Natorp analyzes Descartes'...