While economics is about how people make choice, sociology is about how they don't have any choice to make.

I never held Negroes to be inherently inferior. The statement in Marriage and Morals refers to environmental conditioning. I have had it withdrawn from subsequent editions because it is clearly ambiguous.

There was, I think, never any reason to believe in any innate superiority of the male, except his superior muscle.

Education ought to foster the wish for truth, not the conviction that some particular creed is the truth.

I don't like the spirit of socialism - I think freedom is the basis of everything.

It is a waste of energy to be angry with a man who behaves badly, just as it is to be angry with a car that won't go.

The great majority of men and women, in ordinary times, pass through life without ever contemplating or criticising, as a whole, either their own conditions or those of the world at large.