Nothing is ever the same as they said it was. It's what I've never seen before that I recognize.
Importantly, deconstruction is not destruction. The concept or object is still there at the end. In fact, for Derrida, what was fascinating was not just the multiple factors that went into constructing a concept, but the actual final act of construction itself; the faith or belief we have that any concept is coherent and enduring. One of the tricks of thinking is to convince us that a word, or a concept, or a text, has a single, fixed meaning. And that this meaning is true, pure, unconstructed – natural, rather than cultural. Derrida called this the ‘metaphysics of presence’: the belief that coherence is a measure of truth.
My position here is that only Marxism offers a philosophically coherent and ideologically compelling resolution to the dilemma of historicism evoked above. Only Marxism can give us an adequate account of the essential mystery of the cultural past, which, like Tiresias drinking the blood, is momentarily returned to life and warmth and allowed once more to speak, and to deliver its long-forgotten message in surroundings utterly alien to it. This mystery can be reenacted only if the human adventure is one; only thus — and not through the hobbies of antiquarianism or the projections of the modernists — can we glimpse the vital claims upon us of such long-dead issues as the seasonal alternation of the economy of a primitive tribe, the passionate disputes about the nature of the Trinity, the conflicting models of the polis or the universal Empire, or, apparently closer to us in time, the dusty parliamentary and journalistic polemics of the nineteenth-century nation states. These matters can recover their original urgency for us only if they are retold within the unity of a single great collective story; only if, in however disguised and symbolic a form, they are seen as sharing a single fundamental theme — for Marxism, the collective struggle to wrest a realm of Freedom from a realm of Necessity...
Try to make things that can become better in other people's minds than they were in yours.