I'm not as famous as Stephen Hawking, but certainly in the U.S., I have a very high profile for a scientist. It is an awesome responsibility, one that I don't shoulder lightly.

When you have shot one bird flying you have shot all birds flying. They are all different and they fly in different ways but the sensation is the same and the last one is as good as the first.

Do the thing you fear most and the death of fear is certain.

The same way that racism is a white person's problem, violence against women is a men's problem.

We have no more right to consume happiness without producing it than to consume wealth without producing it.