Also, the medium in philosophy is the concept (like sound for the musician or colour for the painter), the philosopher creates concepts. He executes his creation in a conceptual 'continuum' just like the musician does in a sonorous continuum. What's important here is this: where do concepts come from? What is the creation of concepts? A concept exists no less than characters do. In my opinion, what we need is a massive expenditure of concepts, an excess of concepts. You have to present concepts in philosophy as though you were writing a good detective novel: they must have a zone of presence, resolve a local situation, be in contact with the ‘dramas’, and bring a certain cruelty with them. They must exhibit a certain coherence but get it from somewhere else”.
- Gilles Deleuze, “On Nietzsche and the Image of Thought”
"His [Hume's] empiricism is, so to speak, a kind of universe of science fiction: as in science fiction, the world seems fictional, strange, foreign, experienced by other creatures; but we get the feeling that this world is our own, and we are the creatures."
- Gilles Deleuze, "Hume"
"Style in philosophy is the movement of concepts.. Style is a set of variations in language, a modulation, and a straining of one's whole language towards something outside it. One's always trying to bring someting to life, to free life from where it's trapped, to trace lines of flight."
-Gilles Deleuze, Negotiations.
'In philosophy you can only think through metaphor' Althusser, 'Essays in Self-Criticism".