Down there between our legs, it's like an entertainment complex in the middle of a sewage system. Who designed that?

My investment of time, as an educator, in my judgment, is best served teaching people how to think about the world around them. Teach them how to pose a question. How to judge whether one thing is true versus another.

If the purpose of the universe was to create humans then the cosmos was embarrassingly inefficient about it.

America has an economy reversing relative to other nations in the world. And I want to turn that around. And one way I know to turn it around is to get everyone excited about what it is to innovate again.

If all that you see, do, measure and discover is the will of a deity, then ideas can never be proven wrong, you have no predictive power, and you are at a loss to understand the principles behind most of the fundamental interconnections of nature.

In the animal kingdom, one of the keys to survival is to outwit your enemies. And when you're surrounded by carnivores, one of the best strategies is to fade into the background and disappear.

I'd go back and hang out with Isaac Newton. I'm torn between do I hang out with him or do I bring him into the present to hang out with me. See, that might be terrifying because his head will just explode once he sees everything that was derived from his discoveries, but I'd spend more time with someone who I think is one of the most brilliant minds our species has ever known.