I have a multivolume history of the world from the 19th century that begins with Noah's flood as though it's as historical a fact as the rise and fall of Rome.

All tweets are tasty. Any tweet anybody writes is tasty. So, I try to have each tweet not simply be informative, but have some outlook, some perspective that you might not otherwise had.

If Pizza sizes were given in area not diameter, you'd see instantly that a 7 inch is less than half the size of a 10 inch pie

I'm revealing information to people. I'm not creating it. And to the extent that people embrace it, I think they're empowered by it, because any time you have a bigger perspective today than you did yesterday, it's got to be only for the good of your mind, your body, your soul.

The very nature of science is discoveries, and the best of those discoveries are the ones you don't expect.

If something comes up that is completely freaky, it's spiritual-looking to the scientist, the first explanation is not going to be that it's God, because the history of that has failed. It would have to be, like, the hundredth explanation.

Everything we do understand about the universe - the periodic table of elements, Einstein's laws, Newton's laws, all of chemistry, all of biology - that's 4 percent of the universe. We got to the moon on the 4 percent we do understand. We landed on Mars on the 4 percent we do understand. So the day we crack the nut of the rest of that 95 percent... Oh my gosh.