Faith in reason as a prime motor is no longer the criterion of the sound mind, any more than faith in the Bible is the criterion of righteous intention.

What right has any human being to talk of bringing up a child? You do not bring up a tree or a plant. It brings itself up. You have to give it a fair chance by tilling the soil.

If a group of beings from another planet were to land on Earth - beings who considered themselves as superior to you as you feel yourself to be to other animals - would you concede them the rights over you that you assume over other animals?

A man has no business to marry a woman who can't make him miserable. It means she can't make him happy.

Am reserving two tickets for you for my premiere. Come and bring a friend - if you have one. Telegram inviting Winston Churchill to opening night of Pygmalion. Churchill wired back: Impossible to be present for the first performance. Will attend the second - if there is one.

You cannot have power for good without having power for evil too. Even mother's milk nourishes murderers as well as heroes.

We must not stay as we are, doing always what was done last time; or we shall stick in the mud.