I don't mind not knowing. It doesn't scare me.

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.

She was my friend. Briefly, she was my lover. She was braver than I ever would have been in the moment of death. And I bet she was a hell of a shooting star.

The excellence of a gift lies in its appropriateness rather than in its value.

Don't do anything that goes against your conscience, even if your country says so.

Control leads to compliance; autonomy leads to engagement.

Many wonderful, creative people have won Oscars, so if you win one, you're in their company.

I've had a baby. I've had an abortion.

Personality is a person among persons. There is no personality of one man on a desert island.

I don't know. I'm really really really nervous.

Making a movie is like a stagecoach ride through the Old West: at first you wish for a pleasant trip, and after a while you just hope you reach your destination.