By academic freedom I understand the right to search for truth and to publish and teach what one holds to be true. This right implies also a duty: one must not conceal any part of what on has recognized to be true. It is evident that any restriction on academic freedom acts in such a way as to hamper the dissemination of knowledge among the people and thereby impedes national judgment and action.

The intuitive mind is a sacred gift and the rational mind is a faithful servant. We have created a society that honors the servant and has forgotten the gift.

What counts can't always be counted; what can be counted doesn't always count.

I am doing just fine, considering that I have triumphantly survived Nazism and two wives.

The more cruel the wrong that men commit against an individual or a people, the deeper their hatred and contempt for their victim.

Knowledge is realizing that the street is one way; wisdom is looking in both directions anyway.

I know that philosophically a murderer is not responsible for his crime, but I prefer not to take tea with him.