"The rejection of all abstract formalism. Materialism reminds every science of its real source: the world men transform. No science can, whether in its history or its object, grasp its own origins within itself or constitute itself as a closed world, exhaustively defined by internal rules. Materialism refers every science and every activity to the reality they depend on, even if this dependence is masked by a great many abstract mediations: mathematics as well as logic, aesthetics as well as ethics and politics."

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A determination or an effect within a system which is no longer that of a presence but of a diffrance, a system that no longer tolerates the opposition of activity and passivity, nor that of cause and effect, or of indetermination and determination, etc., such that in designating consciousness as an effect or a determination, one continues - for strategic reasons that can be more or less lucidly deliberated and systematically calculated - to operate according to the lexicon of that which one is de-limiting.

— Jacques Derrida