Into every tidy scheme for arranging the pattern of human life, it is necessary to inject a certain dose of anarchism.

Emphatic and reiterated assertion, especially during childhood, produces in most people a belief so firm as to have a hold even over the unconscious.

In the revolt against idealism, the ambiguities of the word experience have been perceived, with the result that realists have more and more avoided the word.

All that passes for knowledge can be arranged in a hierarchy of degrees of certainty, with arithmetic and the facts of perception at the top.

I do not myself feel that any person who is really profoundly humane can believe in everlasting punishment.

Envy ... is one form of a vice, partly moral, partly intellectual, which consists in seeing things never in themselves but only in their relations.

Hitler is an outcome of Rousseau.