I don't teach my students, I provide the circumstances in which they can learn.

When the number of factors coming into play in a phenomenological complex is too large scientific method in most cases fails. One need only think of the weather, in which case the prediction even for a few days ahead is impossible.

I admit that thoughts influence the body.

The release of atomic power has changed everything except our way of thinking ... the solution to this problem lies in the heart of mankind. If only I had known, I should have become a watchmaker. (1945)

I was originally supposed to become an engineer but the thought of having to expend my creative energy on things that make practical everyday life even more refined, with a loathsome capital gain as the goal, was unbearable to me.

Imagination is everything. It is the preview of life's coming attractions.

Man usually avoids attributing cleverness to somebody else unless it is an enemy.