Niels Bohr Quotes

Prediction is very difficult, especially about the future.

The opposite of a correct statement is a false statement. But the opposite of a profound truth may well be another profound truth.

There are trivial truths and there are great truths. The opposite of a trivial truth is plainly false. The opposite of a great truth is also true.

You can recognize a small truth because its opposite is a falsehood. The opposite of a great truth is another truth.

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

Those who are not shocked when they first come across quantum theory cannot possibly have understood it.

Stop telling God what to do with his dice.

The very nature of the quantum theory ... forces us to regard the space-time coordination and the claim of causality, the union of which characterizes the classical theories, as complementary but exclusive features of the description, symbolizing the idealization of observation and description, respectively.

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

It is not enough to be wrong, one must also be polite.

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

Everything we call real is made of things that cannot be regarded as real.