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The charm of history and its enigmatic lesson consist in the fact that, from age to age, nothing changes and yet everything is completely different.

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These,” he said gravely, “are unpleasant facts; I know it. But then most historical facts are unpleasant.

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That men do not learn very much from the lessons of history is the most important of all the lessons that History has to teach.

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De Sade is the one completely consistent and thoroughgoing revolutionary of history.