Quote by Niels Bohr (1885-1962)

• An expert is a person who has made all the mistakes that can be made in a very narrow field.

• Prediction is very difficult, especially about the future.

• Never express yourself more clearly than you are able to think.

• Of course I don't believe in it. But I understand that it brings you luck whether you believe in it or not.

• Your theory is crazy, but it's not crazy enough to be true.

• Anyone who says that they can contemplate quantum mechanics without becoming dizzy has not understood the concept in the least.