The people who are regarded as moral luminaries are those who forego ordinary pleasures themselves and find compensation in interfering with the pleasures of others.

No matter how eloquently a dog may bark, he cannot tell you that his parents were poor, but honest.

I hold all knowledge that is concerned with things that actually exist - all that is commonly called Science - to be of very slight value compared to the knowledge which, like philosophy and mathematics, is concerned with ideal and eternal objects, and is freed from this miserable world which God has made.

As soon as we abandon our own reason, and are content to rely upon authority, there is no end to our trouble. . . . No Catholic, for instance, takes seriously the text which says that a Bishop should be the husband of one wife.

Why is propaganda so much more successful when it stirs up hatred than when it tries to stir up friendly feeling?

I am allowed to use plain English because everybody knows that I could use mathematical logic if I chose.

Anything you're good at contributes to happiness.