My friends and I had taken dancing lessons, although none of us would ever admit it. In those depression days, a friend of my mother was trying to make a living by teaching dancing in the evening, in an upstairs dance studio. There was a back door to the place, and she arranged it so the young men could come up through the back way without being seen.

Everything is made of atoms.

All theoretical chemistry is really physics; and all theoretical chemists know it.

I love only nature, and I hate mathematicians.

In fact the total amount that a physicist knows is very little. He has only to remember the rules to get him from one place to another and he is all right.

Victory usually goes to those green enough to underestimate the monumental hurdles they are facing.

I would rather have questions that can't be answered than answers that can't be questioned.