There are things that are so serious that you can only joke about them.

The problems of language here are really serious. We wish to speak in some way about the structure of the atoms. But we cannot speak about atoms in ordinary language.

Even for the physicist the description in plain language will be a criterion of the degree of understanding that has been reached.

An expert is someone who knows some of the worst mistakes that can be made in his subject, and how to avoid them

What we observe is not nature itself, but nature exposed to our method of questioning.

What we observe is not nature itself, but nature exposed to our method of questioning.