Without risks, there can't be breakthroughs.

You could not legally put a human and fly them into space. In fact, you couldn't bring a spaceship back. All those spaceships we were sending commercially into space were one way. You sort of like, got rid of them. And most passengers, who go up, do want to come back down.

At its core, bitcoin is a smart currency, designed by very forward-thinking engineers. It eliminates the need for banks, gets rid of credit card fees, currency exchange fees, money transfer fees, and reduces the need for lawyers in transitions all good things

Super-ambitious goals tend to be unifying and energizing to people; but only if they believe there's a chance of success.

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

When faced without a challenge, make one

Back in 2007, I had the opportunity to meet Professor Stephen Hawking through the X PRIZE Foundation. In my first conversation with him I learned that he was passionate about flying into space someday.