Friedrich Nietzsche Heidegger absorbed it and made it their own. It shaped their philosophical and cultural endeavor, as well as their political understanding. Weber, for example, relies on Nietzsche's perspectivism by maintaining that objectivity is still possible—but only after a particular perspective, value, or end has been established. Among his critique of traditional philosophy of Kant, Descartes and Plato in "Beyond Good and Evil", Nietzsche attacked "thing in itself" and "cogito ergo sum" ("I think, therefore I am") as unfalsifiable beliefs based on naive acceptance of previous notions and fallacies. Philosopher Alasdair MacIntyre puts Nietzsche in a high place in the history
Cogito, ergo sum distinctiveness of self-evident propositions — to establish true and justified propositions despite having adopted a method of generalized doubt. As a consequence of this demonstration, Descartes considers science and mathematics to be justified to the extent that their proposals are established on a similarly immediate clarity, distinctiveness, and self-evidence that presents itself to the mind. The originality of Descartes's thinking, therefore, is not so much in expressing the "cogito" — a feat accomplished by other predecessors, as we shall see — but on using the "cogito" as demonstrating the most fundamental epistemological principle, that science and mathematics are justified by