My mentality is that of a samurai. I would rather commit seppuku than fail.

That's my lesson for taking a vacation: vacation will kill you.

It was obvious to me that we could never colonize Mars without reusability, any more than America would have been colonized if they had to burn the ships after every trip.

I would like to fly in space. Absolutely. That would be cool. I used to just do personally risky things, but now I've got kids and responsibilities, so I can't be my own test pilot. That wouldn't be a good idea. But I definitely want to fly as soon as it's a sensible thing to do.

Weighing too much on someone's talent and not someone's personality. I think it matters whether someone has a good heart.

Don't be afraid of new arenas.

Some people don't like change, but you need to embrace change if the alternative is disaster.