You can just reload, propel it and fly again. This is extremely important for revolutionizing access to space because as long as we continue to throw away rockets and space crafts, we will never truly have access to space.

I think the high-tech industry is used to developing new things very quickly. It's the Silicon Valley way of doing business: You either move very quickly and you work hard to improve your product technology, or you get destroyed by some other company.

There's nothing - I've bought everything I want. I don't like yachts or anything; you know, I'm not a yacht person, and I've got pretty much the nicest plane I'd want to have.

Fear is a hard thing to deal with. I feel it quite strongly. If I think something is important enough, I'll make myself do it in spite of fear. But it can really sap the will. I hate fear, I wish I had it less.

It's really incumbent upon us as life's agents to extend life to another planet. I think that being a multi-planet species will significantly increase the richness and scope of the human experience.

If anyone thinks they'd rather be in a different part of history, they're probably not a very good student of history. Life sucked in the old days. People knew very little, and you were likely to die at a young age of some horrible disease. You'd probably have no teeth by now. It would be particularly awful if you were a woman.

The United States is definitely ahead in culture of innovation. If someone wants to accomplish great things, there is no better place than the U.S.