For me, one of the most fertile consequences of the space program is the extent to which it stimulates people to innovate because they want to create a different tomorrow than what they're living in today. And it's that culture of innovation that spawns entirely new economies.

For me, the most fascinating interface is Twitter. I have odd cosmic thoughts every day and I realized I could hold them to myself or share them with people who might be interested.

Space enthusiasts are the most susceptible demographic to delusion that I have ever seen.

When you innovate no one else can figure out how to do what you're doing because you're too far ahead of them. And the day they do figure out, you're on to the next object, the next widget, the next concept in innovation. And so America has benefited economically from the space race even though it was driven by military.

There's a lot of memorization that goes on in school. You memorize vocabulary words and all these sorts of things.

When we went to the moon and realized that the Soviet Union had no realistic plans of getting to the moon, then we stopped going to the moon.

I object to religion in science classrooms not because it's religion but because it's not science.