We're quite happy with our Big Bang description of cosmic origins. But actually, the Big Bang accounts for what happened only after the beginning. The beginning itself, and especially what happened before, remains the biggest mystery of all.

If an alien lands on your front lawn and extends an appendage as a gesture of greeting, before you get friendly, toss it an eightball. If the appendage explodes, then the alien was probably made of antimatter. If not, then you can proceed to take it to your leader.

Italy valued cathedrals while Spain valued explorers. So worldwide, five times as many people speak Spanish than Italian.

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

'Cause a musician, you can't tell me, "I've got this message I want share with the public," and it's three-and-a-half minutes long. That's not it. If your message is only three-and-a-half minutes long, then we got nothing else to talk about. Because life is more complex than three-and-a-half minutes.

I knew my interest in the universe and I owned a telescope that I bought with money I earned by walking dogs. 50 cents per walk, per dog, and that accumulated quickly. I bought a camera, a telescope. I taught myself astrophotography. I did all this.

I don't have an issue with what you do in the church, but I'm going to be up in your face if you're going to knock on my science classroom and tell me they've got to teach what you're teaching in your Sunday school. Because that's when we're going to fight.