We live in the kind of society where, in almost all cases, hard work is rewarded.

NASA has spin-offs, and it's a huge and very impressive list, including accurate and affordable LASIK eye surgery.

To believe in a universe as young as 6 or 7,000 years old is to extinguish the light from most of the galaxy.

We account for all the matter and energy that we're familiar with, measure up how much gravity it should have, it's one-sixth of the gravity that's actually operating on the universe. We call that dark matter. It really should be called dark gravity. We don't know what that is.

I'm not writing for myself. I'm writing as an educator, I'm writing to stimulate others.

If we're going to affect policy, or affect attitudes, for me, the adults have always been the target population.

If your belief system is not founded in an objective reality, you should not be making decisions that affect other people.