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.

Failure is an option here. If things are not failing, you are not innovating enough.

When something is important enough, you do it even if the odds are not in your favor.

People should pursue what they're passionate about. That will make them happier than pretty much anything else.

I think it is possible for ordinary people to choose to be extraordinary.

I'm extremely confident that solar will be at least a plurality of power, and most likely a majority... in less than 20 years.

Constantly seek criticism. A well thought out critique of what you're doing is as valuable as gold

Optimism, pessimism, f**k that; we're going to make it happen. As God is my bloody witness, I'm hell-bent on making it work.

I think that's the single best piece of advice: constantly think about how you could be doing things better and questioning yourself.

Mars is the only place in the solar system where it's possible for life to become multi-planetarian.

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

Humility exists only in those who are poor enough to see that they possess nothing of their own.

I believe musicians have a duty, a responsibility to reach out, to share your love or pain with others.

Under any sort of attack, keep cool. And if you must shoot, shoot with precision.

Faith is not in your head. Faith is in your heart. Sometimes you have to turn your mind off and listen to your heart.

Everything is as important as everything else.

I do believe God inspired and worked on everyone's heart.

There is always a cause for fear. The cause may change over time, but the fear is always with us.

I believe in benevolent dictatorship provided I am the dictator.

Mistakes don't have to define us. They're how we learn and grow. They show us who and what we don't want to be. It's why they're mistakes.

I'm definitely preoccupied by thinking I'm just a biological thing. I want to feel that there's more, but so often I'm reminded of how we're just like baboons, basically.