Three and a half million years ago our ancestors - yours and mine - left these traces [indicates footprints]. We stood up and parted ways from them. Once we were standing on two feet, our eyes were no longer fixated on the ground. Now, we were free to look up and wonder.

If you're denying God's power, that means you don't really believe they were miracles, and so then why believe they happened at all. What you're saying is you're taking the Bible's account as literally true in need of a scientific explanation rather than just people coming up with stuff to fulfill their religious missions.

We spend the first year of a child's life teaching it to walk and talk and the rest of its life to shut up and sit down. There's something wrong there.

If we want to unlock the secret behind the origin of our sun and its planets, it would be helpful to find some remnants from the birth itself, an event that took place about four-and-a-half-billion years ago.

It could be that these other civilizations, if they are far more advanced intellectually than we are, would not even measure our existence as a blip on the intelligence radar. They could be so advanced that we are to them what worms are to us.

The word smart is not applied to all professions, even if you are smart in that profession. No one talks about smart lawyers. They may say a brilliant lawyer. They'll talk about a creative artist. Smart is saved for scientists. It just is. It's not even really applied to medical doctors. It applies to scientists in the lab figuring out what hadn't been figured out before.

Santa knows Physics: Of all colors, Red Light penetrates fog best. That's why Benny the Blue-nosed reindeer never got the gig.