There is no subject on which more dangerous nonsense is talked and thought than marriage.

If you can't get rid of the skeleton in your closet, you'd best teach it to dance.

Religion is a great force - the only real motive force in the world; but what you fellows don't understand is that you must get at a man through his own religion and not through yours.

You see things and you say, 'Why?'. But I dream things and I say, 'Why not?'.

Time enough to think of the future when you haven't any future to think of.

The sex relation is not a personal relation. It can be irresistibly desired and rapturously consummated between persons who could not endure one another for a day in any other relation.

I ... must continue to strive for more knowledge and more power, though the new knowledge always contradicts the old and the new power is the destruction of the fools who misuse it.