I think people are dreaming big because they have the tools to dream big. I hope that people are dreaming big because it makes them feel good about their lives.

I founded a launch company called International Microspace when I graduated medical school in 1989. We were trying to build a microsatellite launcher.

Life on Earth is at an ever-increasing risk of being wiped out by disaster. ... I think the human race doesn't have a future if it doesn't go into space. I therefore want to encourage public interest in space.

I believed that once we got to the Moon, there was no stopping us. But in fact, we did stop.

Today, philanthropy is a very unsophisticated, old world process where people who make a shitload of money go and give it away and when they're making their money, they're focused on 10x, 100x returns on the dollar.

It's sad that the U.S. government doesn't fund risky research anymore.

Go and try to start your own government in the United States today and you'll be squashed very quickly.