The good life is one inspired by love and guided by knowledge.

The place of the father in the modern suburban family is a very small one, particularly if he plays golf.

Love as a relation between men and women was ruined by the desire to make sure of the legitimacy of children.

I must, before I die, find some way to say the essential thing that is in me, that I have never said yet -- a thing that is not love or hate or pity or scorn, but the very breath of life, fierce and coming from far away, bringing into human life the vastness and the fearful passionless force of non-human things.

Man can be stimulated by hope or driven by fear, but the hope and the fear must be vivid and immediate if they are to be effective without producing weariness.

The more we realize our minuteness and our impotence in the face of cosmic forces, the more amazing becomes what human beings have achieved.

The human race may well become extinct before the end of the century. Speaking as a mathematician, I should say the odds are about three to one against survival.