Science goes from question to question; big questions, and little, tentative answers. The questions as they age grow ever broader, the answers are seen to be more limited.

There's life all over this universe, but the only life in the solar system is on earth, and in the whole universe we are the only men.

Dropping those atomic bombs on Hiroshima and Nagasaki was a war crime.

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

It would be a poor thing to be an atom in a universe without physicists, and physicists are made of atoms. A physicist is an atom's way of knowing about atoms.

A physicist is an atom's way of knowing about atoms.

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

We are the products of editing, rather than of authorship.

I do not want to believe in God. Therefore I choose to believe in that which I know is scientifically impossible, spontaneous generation leading to evolution.

All War Departments are now Defense Departments. This is all part of the doubletalk of our time. The aggressor is always on the other side.

I tell my students to try early in life to find an unattainable objective.

Men are always ready to die for us, but not to make our lives worth having. Cheap sentiment and bad logic.

You are in a much better position to serve others when your basic needs are met and your “tank is full”.

Experience tells us what not to do again & what to do better. Our heart forgives whilst our mind remembers and becomes the gatekeeper of no.

Somehow, the story of the book enhanced the story within it.

Today, with tears in my eyes, I telephoned the mother of one of our children (aged thirteen) who had spoken for the first time since the age of three...

The quality of life is more important than life itself.

Although tyranny...may successfully rule over foreign peoples, it can stay in power only if it destroys first of all the national institutions of its own people.

Every tribe needs a good front man to sell the program. Who better to convince the Middle East to give up the oil, than a brown man with a Muslim name?

Should any man tell you that a mountain had changed its place, you are at liberty to doubt it if you think fit; but if any one tells you that a man has changed his character, do not believe it.

The Pearl Principle - no inner irritation, no pearl.