"If you go back a few hundred years, what we take for granted today would seem like magic—being able to talk to people over long distances, to transmit images, flying, accessing vast amounts of informa…"

"I'm not a big fan of vacations. I think work is my vacation."

"I always invest my own money in the companies I create. I don't believe in using other people's money."

"I could technically write a book. It might be a little boring."

"If you buy a ticket to Mars, you're buying a one-way ticket. There's no return. It's a very difficult journey. You may die. You may die on the way there. You may die after you get there. You'll probab…"