I like seeing how people have succeeded when others would have presumed they would have failed, and others just go along with whatever everyone else does.

The first colony on Mars is not going to be built by a private company. How are you going to make money? You're not.

Facts are true whether or not you believe them.

Just to settle it once and for all: Which came first, the chicken or the egg? The egg, laid by a bird that was not a chicken.

One of the things that fascinates me most is when people are so charmed by the universe that it becomes part of their artistic output.

If God to you is where science has yet to tread, then God is an ever-receding pocket.

There are no wild, seedless watermelons. There's no wild cows... You list all the fruit, and all the vegetables, and ask yourself, is there a wild counterpart to this? If there is, it's not as large, it's not as sweet, it's not as juicy, and it has way more seeds in it. We have systematically genetically modified all the foods, the vegetables and animals that we have eaten ever since we cultivated them. It's called artificial selection.