(Joan,1941) She wrote me a letter asking,"How can I read it?,Its so hard." I told her to start at the beginning and read as far as you can get until you're lost. Then start again at the beginning and keep working through until you can understand the whole book. And thats what she did

Mathematics is not just a language. Mathematics is a language plus reasoning.

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

The world is a dynamic mess of jiggling things

I learned from her that every woman is worried about her looks, no matter how beautiful she is.

Winning a Nobel Prize is no big deal, but winning it with an IQ of 124 is really something.

It is in the admission of ignorance and the admission of uncertainty that there is a hope for the continuous motion of human beings in some direction that doesn't get confined, permanently blocked, as it has so many times before in various periods in the history of man.