Alfred North Whitehead

If a dog jumps in your lap, it is because he is fond of you; but if a cat does the same thing, it is because your lap is warmer.

Wymaga to bardzo niezwykłego umysłu, aby przeprowadzić analizę tego, co oczywiste.

Style, in its finest sense, is the last acquirement of the educated mind.

In formal logic, a contradiction is the signal of defeat: but in the evolution of real knowledge it marks the first step in progress toward a victory.

Education with inert ideas is not only useless; it is above all things harmful.

The art of progress is to preserve order amid change and to preserve change amid order.

Everything important has been said before by somebody who did not discover it.

Szukaj prostoty, ale jej nie ufaj.

Ideas won't keep; something must be done about them.

It does not matter what men say in words, so long as their activities are controlled by settled instincts. The words may ultimately destroy the instincts. But until this has occurred, words do not count. - from Science and the Modern World

Religion is what a person does in his solitariness.

The "silly question" is the first intimation of some totally new development.

If a dog jumps in your lap, it is because he is fond of you; but if a cat does the same thing, it is because your lap is warmer.