I speak to you today not as an American citizen and not as a Jew, but as a human being.
The world as we have created it is a process of our thinking. It cannot be changed without changing our thinking.
In my experience, the best creative work is never done when one is unhappy.
Conviction is a good motive, but a bad judge.
No one does anything right in life, until they realize that they are making a mistake.
After a certain high level of technical skill is achieved, science and art tend to coalesce in aesthetics, plasticity, and form. The greatest scientists are artists as well.