The philosopher of the latter type usually feels himself less biassed and broader minded than the Dogmatist, but, as Immanuel Kant points out, in a certain sense Scepticism is equally a form of Dogmatism. He means an enquiry into the nature of mind so far as mind is presupposed in the knowing of anything. The idea of the possibility of a science is Kant’s great philosophical discovery; he is the discoverer of the transcendental or critical method, and it is because of this discovery that philosophy mainly divides itself into Pre-Kantian and Post-Kantian. A science would be concerned with the part of knowledge which is not so much occupied with objects as with the mode of the cognition of the objects so far as the mode of cognition is possible a priori, and to this science Kant applies the term transcendental.