Derrida draws attention to the denegative logic required to speak of what is most important by not speaking of it, by avoiding speaking of it; a logic he finds at work in apophatic texts from Plato's Timaeus to Eckhart's sermons to Dionysius' hierarchies to Heidegger's late unpublished lectures
negatival negatory abnegative negative nonpositive down negatative pseudonegative nonnegative apophatic
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