The trouble with most of the things that people want is that they get them.

The concept of war crimes is an American invention.

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.

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

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.

If the germ plasm wants to swim in the ocean, it makes itself a fish; if the germ plasm wants to fly in the air, it makes itself a bird. If it wants to go to Harvard, it makes itself a man. The strangest thing of all is that the germ plasm that we carry around within us has done all those things. There was a time, hundreds of millions of years ago, when it was making fish. Then ... amphibia ... reptiles ... mammals, and now it's making men.

I think I know what is bothering the students. I think that what we are up against is a generation that is by no means sure that it has a future.