Every great and deep difficulty bears in itself its own solution. It forces us to change our thinking in order to find it. – Niels Bohr
An expert is a man who has made all the mistakes which can be made in a very narrow field. – Niels Bohr
It is wrong to think that the task of physics is to find out how Nature is. Physics concerns what we say about Nature. – Niels Bohr
There are trivial truths and the great truths. The opposite of a trivial truth is plainly false. The opposite of a great truth is also true. – Niels Bohr