Everyone recognizes a distinction between knowledge and wisdom. . . Wisdom is a kind of knowledge. It is knowledge of the nature, career, and consequences of human values. Since these cannot be separated from the human organism and the social scene, the moral ways of man cannot be understood without knowledge of the ways of things and institutions.

Nonetheless, it still remains true that as a set of cognitive beliefs, religious doctrines constitute a speculative hypothesis of an extremely low order of probability.

Fear of death has been the greatest ally of tyranny past and present.

Students rarely disappoint teachers who assure them in advance that they are doomed to failure.

Those who say that life is worth living at any cost have already written an epitaph of infamy, for there is no cause and no person that they will not betray to stay alive.

The next time anyone asks you "What is Bertrand Russell's philosophy?" the correct answer is "What year, please?"

I was guilty of judging capitalism by its operations and socialism by its hopes and aspirations; capitalism by its works and socialism by its literature.