I like a bit of mongrel myself, whether it's a man or a dog.

The golden rule is that there are no golden rules.

Of the two lots, the woman's lot of perpetual motherhood, and the man's of perpetual babyhood, I prefer the man's.

He who confuses political liberty with freedom and political equality with similarity has never thought for five minutes about either.

We must not stay as we are, doing always what was done last time, or we shall stick in the mud. Yet neither must we undertake a new world as catastrophic Utopians, and wreck our civilization in our hurry to mend it.

The more things a man is ashamed of, the more respectable he is.

Science becomes dangerous only when it imagines that it has reached its goal.