“If fifty million people say a foolish thing, it is still a foolish thing.”

It is human nature to think wisely and act in an absurd fashion.

If we don’t change, we don’t grow. If we don’t grow, we aren’t really living.

The history books which contain no lies are extremely tedious.

Nine tenths of education is encouragement.

I prefer the errors of enthusiasm to the indifference of wisdom.

Science neither cares to please nor to displease. She is inhuman. It is not science but poetry that charms and consoles. And that is why poetry is more necessary than science.

When a thing has been said and said well, have no scruple. Take it and copy it.

Of all sexual aberrations, chastity is the strangest.

Dictionary: The universe in alphabetical order.

Man is a rational animal. He can think up a reason for anything he wants to believe.

The wonder is, not that the field of stars is so vast, but that man has measured it.

People who have no weaknesses are terrible; there is no way of taking advantage of them.

It is by acts and not by ideas that people live.

It is not customary to love what one has

If the path be beautiful, let us not ask where it leads.

Without lies, humanity would perish of despair and boredom

It is hard to befool a fool who has already been fooled so many times.

Lincoln was right about not fooling all the people all the time. But Republicans haven’t given up trying.

You know, they are fooling us, there is no God.

Man is the only kind of varmint sets his own trap, baits it, then steps in it.

Wisdom is the right use of knowledge. To know is not to be wise. Many men know a great deal, and are all the greater fools for it. There is no fool so great a fool as a knowing fool. But to know how to use knowledge is to have wisdom.

I will remove from my vocabulary such words and phrases as quit, cannot, unable, impossible, out of the question, improbable, failure, unworkable, hopeless, and retreat; for they are the words of fools.

Whoever wants music instead of noise, joy instead of pleasure, soul instead of gold, creative work instead of business, passion instead of foolery, finds no home in this trivial world of ours.

Knowledge without action is wastefulness and action without knowledge is foolishness.