Caution in handling generally accepted opinions that claim to explain whole trends of history is especially important for the historian of modern times, because the last century has produced an abundance of ideologies that pretend to be keys to history but are actually nothing but desperate efforts to escape responsibility…. The old manipulators of logic were the concern of the philosopher, whereas the modern manipulators of facts stand in the way of the historian. For history itself is destroyed, and its comprehensibility—based upon the fact that it is enacted by men and therefore can be understood by men—is in danger, whenever facts are no longer held to be part and parcel of the past and present world, and are misused to prove this or that opinion.
Hannah Arendt
The Origins of Totalitarianism
