We are part of the whole which we call the universe, but it is an optical delusion of our mind that we think we are separate. This separateness is like a prison for us. Our job is to widen the circle of our compassion so we feel connected with all people and situations.

The release of atomic energy has not created a new problem. It has merely made more urgent the necessity of solving an existing one.

I am content in my later years. I have kept my good humor and take neither myself nor the next person seriously.

If you want to find out anything from the theoretical physicists about the methods they use, I advise you to stick closely to one principle: don't listen to their words, fix your attention on their deeds. To him who is a discoverer in this field the products of his imagination appear so necessary and natural that he regards them, and would like to have them regarded by others, not as creations of thought but as given realities.

The question that drives me hazy is whether it is I or others who is crazy.

No worthy problem is ever solved within the plane of its original conception.

Let me tell you what I look like: pale face, long hair, and a tiny start of a paunch. In addition, an awkward gait, and a cigar in the mouth and a pen in pocket or hand.