A clone of Einstein wouldn't be stupid, but he wouldn't necessarily be any genius, either.

Today, the theory of evolution is an accepted fact for everyone but a fundamentalist minority, whose objections are based not on reasoning but on doctrinaire adherence to religious principles.

Science moves with the spirit of an adventure characterized both by youthful arrogance and by the belief that the truth, once found, would be simple as well as pretty.

Knowing "why" (an idea) is more important than learning "what" (the fact).

It's necessary to be slightly underemployed if you are to do something significant.

No one may have the guts to say this, but if we could make better human beings by knowing how to add genes, why shouldn't we?

We're not all equal, it's simply not true. That isn't science.

Whenever you interview fat people, you feel bad, because you know you're not going to hire them.

Our goal should be to understand our differences.

The way to do great science is to stay away from subjects that are overpopulated, and go to the frontiers.

Never be the brightest person in the room.

We're paying the highest tribute you can pay a man. We trust him to do right. It's that simple.

I saw something I could never forget. I saw lifetimes of acknowledgement, fear, wisdom, questioning, and understanding in a child's eye. It was the worst thing I would ever witness.

Worldly faces never look so worldly as at a funeral. They have the same effect of grating incongruity as the sound of a coarse voice breaking the solemn silence of night.

For the economy itself will die if our ecosystems collapse.

In order to build our nation, we must all exceed our own expectations.

Technique alone is never enough. You have to have passion. Technique alone is just an embroidered potholder.

I have no room in my life for any form of negativity or nonacceptance.

We share half our genes with the banana.

I'd chosen instead to just change my route, go miles out of the way, as if avoiding it would make it go away once and for all.

The first monster you have to scare the audience with is yourself.