The chief source of man's inhumanity to man seems to be the tribal limits of his sense of obligation to other men.

There was a time when I had all the answers. My real growth began when I discovered that the questions to which I had the answers were not the important questions.

History is a realm in which human freedom and natural necessity are curiously intermingled.

No nation can say, 'We will capitulate to tyranny rather than accept a speculative fate - to accept an absolute fate in alternative to a speculative one' - no nation can do that.

I think that the Christian faith is right as against simple forms of secularism. That it believes that there is in man a radical freedom, and this freedom is creative but it is also destructive. And there's nothing that prevents this from being both creative and destructive.

Reason is not the sole basis of moral virtue in man. His social impulses are more deeply rooted than his rational life.

We misjudge anybody who's different from us and the Jews diverge from our type, ethnically and religiously. That's their chief offense, but there are particular causes.