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

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.

Give light, and people will find the way...

Man must now assume the responsibility for his world. He can no longer shove it off on religious power.

Did I help you toward a fate you didn't want, Alaska, or did I just assist in your willful self-destruction?

Your flattery is as full of contempt as your insults were.

Gratefulness is a payment everyone can afford.

Individuals who were submerged in reality, merely feeling their needs, emerge from reality and perceive the causes of their needs.

When you turn on the news, they don't say, "Hey, 2 Million kids went to school safely today...40,000 flights took place without incident." They don't say that.

You can't be in the public eye without making mistakes and having some regrets and having people analyze everything you do.

We have the ability now to arrange global economic institutions so that poverty declines to a fraction of what it is now.

Of course, a movie is in constant flux.