As you lecture, you keep watching the faces, and information keeps coming back to you all the time.

A peacetime draft is the most un-American thing I know.

I am growing old, and my future, so to speak, is already behind me.

I have lived much of my life among molecules. They are good company.

There is nothing worth having that can he obtained by nuclear war - nothing material or ideological - no tradition that it can defend. It is utterly self-defeating.

Since we have had a history, men have pursued an ideal of immortality.

Civilization will end within 15 or 30 years unless immediate action is taken against problems facing mankind.