Any intelligent fool can make things bigger, more complex, and more violent. It takes a touch of genius -- and a lot of courage -- to move in the opposite direction.

It is wrong to think that the task of physics is to find out how Nature is. Physics concerns what we say about Nature.

Victory goes to the player who makes the next-to-last mistake.

What is mind? No matter. What is matter? Never mind.

While the State exists, there can be no freedom. When there is freedom there will be no State.

Every present state of a simple substance is a natural consequence of its preceding state, in such a way that its present is big with its future.

When it comes to atoms, language can be used only as in poetry. The poet, too, is not nearly so concerned with describing facts as with creating images.

Enjoy present pleasures in such a way as not to injure future ones.

He who knows nothing is nearer the truth than he whose mind is filled with falsehoods and errors.

A lie told often enough becomes the truth.