“Men make their own history, but they do not make it as they please; they do not make it under self-selected circumstances, but under circumstances existing already, given and transmitted from the past. The tradition of all dead generations weighs like a nightmare on the brains of the living. And just as they seem to be occupied with revolutionizing themselves and things, creating something that did not exist before, precisely in such epochs of revolutionary crisis they anxiously conjure up the spirits of the past to their service, borrowing from them names, battle slogans, and costumes in order to present this new scene in world history in time-honored disguise and borrowed language.”
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“The social revolution of the nineteenth century cannot take its poetry from the past but only from the future. It cannot begin with itself before it has stripped away all superstition about the past. The former revolutions required recollections of past world history in order to smother their own content. The revolution of the nineteenth century must let the dead bury their dead in order to arrive at its own content. There the phrase went beyond the content – here the content goes beyond the phrase.”