The author of the work significantly revises the generally accepted ideas about the emergence of Schopenhauer's philosophy and the influences that the philosopher experienced during the formation of his system. Before being recorded in the first volume of the treatise "The World as Will and Representation," Schopenhauer's philosophy went through several stages of development from 1806 to 1816, during which not only its key categories and concepts were constantly transformed, but also the author's deep worldview intentions changed. The monograph reconstructs the substantive features of Schopenhauer's philosophy and its genesis, associated with the decisive role of German classical philosophy in the process of its formation.