Abstract
The chapter presents a study of one of Descartes' most important works: the Discourse on Method. In many respects, the Discourse contains the outline of modern philosophy. Philosophically speaking, the Discourse even appears to determine the position of modern philosophy with respect to science. Discourse seeks to persuade people in possession of the natural light of reason of the following: there can be a science that is true and certain; this science must be acquired by using a heuristic method which proceeds like the method of analysis in mathematics: one learns the necessary insights through step by step exercise; the method does not stand on its own: through exercise the mind itself develops toward a perfect capacity even for metaphysical knowledge; in the process of development self-consiousness in moral issues will be reached on the basis of true metaphysics; and the Discourse must persuade everybody, because if anything is wrong, the whole architecture collapses.