Each generation invents new practices and new writings of philosophy. Ours should have been able to introduce certain mutations that would at least be equivalent with those of cubism, abstract art, and twelve-tone serialism: it has only partially done so. But after all the deconstructions, after Wittgenstein, Heidegger, and Derrida, this demand takes on a different dimension: What do we do with philosophy itself? How do we globally change our relation to this thought, which keeps indicating that it is increasingly conservative and repetitive? These two questions together have prompted what we call \u201cnon-philosophy.\u201dNon-philosophy is not the negation of philosophy. It is the suspension of philosophy\u2019s claim to think the real (Principle of Sufficient Philosophy), and it is the invention of new usages of thought and language that disrupt the rational narrative of the real, which is precisely what every philosophy is. Non-philosophy should rather be understood \u00e0 la the \u201cnon-Euclidean,\u201d namely, as a generalization of the philosophical beyond its traditional limitation by the unitary or \u201cHeraclitean\u201d postulate. From then on, an infinite number of philosophical decisions that are no longer mutually exclusive will correspond with any real phenomenon. Philosophy and Non-Philosophy is widely considered the first fully explicit elaboration of non-philosophy and one of its most important introductory texts.