A woman, even a brilliant woman, must have two qualities in order to fulfill her promise: more energy than mere mortals, and the ability to outwit her culture.

The problem with America today is that too many people know too much about not enough.

most people prefer to carry out the kinds of experiments that allow the scientist to feel that he is in full control of the situation rather than surrendering himself to the situation, as one must in studying human beings as they actually live.

Men have always been afraid that women could get along without them.

Because our civilization is woven of so many diverse strands, the ideas which any one group accepts will be found to contain numerous contradictions.

The need to find meaning...is as real as the need for trust and for love, for relations with other human beings.

We are at a point in history where a proper attention to space, and especially near space, may be absolutely crucial in bringing the world together.