Science itself is a humanist in the sense that it doesn't discriminate between human beings, but it is also morally neutral. It is no better or worse than the ethos with and for which it is used.

In the end, as any successful teacher will tell you, you can only teach the things that you are. If we practice racism then it is racism we teach.

To deaden yourself against any hurt is to deaden yourself also against the hurt of others.

A President is best judged by the enemies he makes when he has really hit his stride.

Man must be at once more humble and more confident; more humble in the face of destructive potentials of what he can achieve, more confident of his own humanity as against computers and robots which are only engines to simulate him.

We cannot live by power, and a culture that seeks to live by it becomes brutal and sterile. But we can die without it.

There are some who become spies for money, or out of vanity and megalomania, or out of ambition, or out of a desire for thrills. But the malady of our time is of those who become spies out of idealism.