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

The fanatic is dangerous.

I might say that the debate between atheists and Christians is rather stale to me, because the Christians say, "You must be a Christian, or you must be a religious man, in order to be good," and the atheists will say, "It's beneath the dignity of a free man to bow his knee to a god, as if he were a sinner," or something like that.

Our dreams of a pure virtue are dissolved in a situation in which it is possible to exercise the virtue of responsibility toward a community of nations only by courting the prospective guilt of the atomic bomb.

We judge the Russians because they're living under despotism and we don't like it, but we've gotten into a fix now where we're living in a common predicament, and we ought to recognize this common predicament.

All men who live with any degree of serenity live by some assurance of grace.

Ultimately freedom is necessary for a society, because every despotic society - for instance, the Russian society - lives on the basis of a rather implausible dogma - the Marxist dogma of world redemption through Communism.