Abstract

The treatise of E.W. von Tschirnhaus «Medicina mentis»… is discussed in this article in the context of formation of Kant’s transcendental criticism. The study of theoretical sources of Tschirnhaus’s epistemology shows that, despite the strong influence of Spinoza and Leibniz, Tschirnhaus is closer to the Cartesian tradition. Trying to eliminate the metaphysical back-grounds from philosophy, he brings together empirical and rationalist traditions as close as possible. Such «critical convergence» results in the «subjective turn» that leads to Kant's transcendental idealism.