Thought ... is still possible, and no doubt actual, wherever men live under the conditions of political freedom. Unfortunately ... no other human capacity is so vulnerable, and it is in fact far easier to act under conditions of tyranny than it is to think.

Of all human activities, only labor, and neither action nor work, is unending, progressing automatically in accordance with life itself and outside the range of willful decisions or humanly meaningful purposes.

If we don't know our own history, we are deemed to live it.

No punishment has ever possessed enough power of deterrence to prevent the commission of crimes. On the contrary, whatever the punishment, once a specific crime has appeared for the first time, its reappearance is more likely than its initial emergence could ever have been.

The individual who has been liberated by reason is always running head-on into a world, a society, whose past in the shape of 'prejudices' has a great deal of power; he is forced to learn that past reality is also a reality.

Fear is an emotion indispensable for survival.

The trouble with Eichmann was precisely that so many were like him, and that the many were neither perverted nor sadistic, that they were, and still are, terribly and terrifyingly normal. From the viewpoint of our legal institutions and of our moral standards of judgment, this normality was much more terrifying than all the atrocities put together.