They always say they didn't. I never heard of one who said, 'You know, I deserve this.' Never happens.

Science is nothing more than a method of inquiry. The method says an assertion is valid - and will be universally accepted - only if it can be reproduced by others, and thereby independently verified. The impersonal rigor of the method has produced enormously powerful results for 400 years. The scientific method is utterly apolitical. A truth in science is verifiable whether you are black or white, male or female, old or young. It’s verifiable whether you know the experimenter, or whether you don’t.

You think you can destroy the planet? What intoxicating vanity. . . . . We've been residents here for the blink of an eye. If we're gone tomorrow, the earth will not miss us.

I was raised with the idea that if you're not smart enough to do science you can do politics.

When I get sick, I go to my doctor like everyone else. A doctor has powerful tools that may help me. Or those tools may hurt me, make me worse. I have to decide. It's my life. It's my responsibility.

There is always a cause for fear. The cause may change over time, but the fear is always with us.

It's better to die laughing than to live each moment in fear.