Physics isn't the most important thing. Love is.

I would rather have questions that can't be answered than answers that can't be questioned.

Study hard what interests you the most in the most undisciplined, irreverent and original manner possible.

You have no responsibility to live up to what other people think you ought to accomplish. I have no responsibility to be like they expect me to be. It's their mistake, not my failing.

I learned very early the difference between knowing the name of something and knowing something.

If you thought that science was certain - well, that is just an error on your part.

Philosophy of science is about as useful to scientists as ornithology is to birds.

The first principle is that you must not fool yourself and you are the easiest person to fool.

We are trying to prove ourselves wrong as quickly as possible, because only in that way can we find progress.

If I could explain it to the average person, I wouldn't have been worth the Nobel Prize.

But there is nothing in biology yet found that indicates the inevitability of death.

God writes the Gospel not in the Bible alone, but also on trees, and in the flowers and clouds and stars.

To ask the right question is harder than to answer it.

When will society, like a mother, take care of all her children?

There's only one remedy for crime — get rid of the psychs! They are causing it!

Prolonged endurance tames the bold.

Let the soldier yield to the civilian.

I never spend my time doing anything I'll have to do again tomorrow.

He who endeavors to please must appear pleased.

Of course, in the art class, I was the model.

A prophet weeps while others are laughing.