We argue in this article that the Peirce's pragmatism, in the same time that it expanded the concept of experience, reduced the scope of empirical data in a dual strategy of metaphysical and epistemological nature. On the one hand, he worked one broader conception of reality than that sustained by British empiricists, inebriated by nominalistic doctrine. In second place, he proposed a kind of 'minimal empiricism', in which reason and experience form the basis on which the knowledge arises, thesis better elaborated in his theory of perception. Thus, the Peircean pragmatism responds to the David Hume's skepticism about the justification of questions of fact and the possibility of metaphysics as science.