Empirical Questions:

A book of philosophy should be in part a very particular species of detective novel, in part a kind of science fiction. By detective novel we mean that concepts, with their zones of presence, should intervene to resolve local situations. They themselves change along with the problems. They have spheres of influence where, as we shall see, they operate in relation to ‘dramas’ and by means of ‘cruelty’. They must have a coherence among themselves, but that coherence must not come from themselves. They must receive their coherence from elsewhere.

(from Roughtheory.org.)

This is a passage, from Deleuze's Difference and Repetition, and I think part of why I like him so much. Maybe I'm focusing too much on Anti-Oedipus, when really DR is where it's at. Hrmm.