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.

Now we're living in a nuclear age, and the science that was supposed to be automatically for human welfare has become a nuclear - a science that gives us nuclear weapons. This is the ironic character of human history, and of human existence, which I can only explain, if I say so, in Biblical terms. Now I don't mean by this reason that I will accept every interpretation of Christianity that's derived from the Bible as many people wouldn't accept my interpretation. But that's what it means for me.

Man is always worse than most people suspect, but also generally better than most people dream.

All known existence points beyond itself.

The individual or the group which organizes any society, however social its intentions or pretensions, arrogates an inordinate portion of social privilege to itself.

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

To be religious is not to feel, but to be.