We need them. We need scientifically literate voters and taxpayers for the future.

If you have this idea that the earth is only 6,000 years old, you are denying, if you will, everything that you can touch and see. Youre not paying attention to whats happening in the universe around you.

For me, the meaning of life is pretty clear: Living things strive to pass their genes into the future.

The world's going to change climatically. We just want to control the change. We want to have a high quality of life for billions of people as we pass through this era.

NASA is an engine of innovation and inspiration as well as the world's premier space exploration agency, and we are well served by politicians working to keep it that way, instead of turning it into a mere jobs program, or worse, cutting its budget.

If you meet somebody who says he or she has never dreamed of flying, I don't believe you. I mean, they're lying.

I meet so many people who are intimidated by arithmetic.