philosophy was something Greek – although brought by immigrants. The birth of philosophy required an encounter between the Greek milieu and the plane of immanance of thought. It required the conjunction of two very different movements of deterritorialization, the relative and the absolute, the first already at work in immanence. Absolute deterritorialization on the plane of thought had to be aligned or directly connected with the relative deterritorialization of Greek society. Deleuze, What Is Philosophy?, p.93
Chaos is an infinte speed of birth and disappearance. Now philosophy wants to know how to retain infinite speeds while gaining consistency, by giving the virtual a consistency specific to it. What is Philosophy? p.118
…conceptual experimentation without limit but with a principle of consistency, direction, becoming something.
The philosophical sieve, as plane of immanance that cuts through chaos, selects infinite movements of thought and is filled with concepts formed like consistent particles going as fast as thought. What is Philosophy? p.118