I was born in Africa. I came to California because it's really where new technologies can be brought to fruition, and I don't see a viable competitor.

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.

[T]he habit of living as if in the shadow of death has remained with me, and I consider that, too, a gift.

I have long been of the opinion that if work were such a splendid thing the rich would have kept more of it for themselves.

What I like about New York City is nobody cares. If they do, they don't ever approach. They just give you a 'What's up?' and that's it.

Ordinary morality is innate in my view.

I think bisexuality is frowned upon for a lot of different reasons. But I don't like any of those words. I don't like any of those labels. I think they're limiting.

Animals have always been therapeutic for me to work with; they help me get me grounded from being on the road.

Discipline is never an end in itself, only a means to an end.

I'm the type of person that likes to give people a hard time, and I enjoy doing little pranks. If I see someone getting a little aroused I have to keep pushing that button.

I'm not smart, but I like to observe. Millions saw the apple fall, but Newton was the one who asked why.

Be merry all, be merry all, With holly dress the festive hall; Prepare the song, the feast, the ball, To welcome merry Christmas.