And we need things in life that are exciting and inspiring. It can't just be about solving some awful problem. There have to be reasons to get up in the morning.

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.

Faith has wings.

O Lord God! What plans do you have for me this year?

If fame came near to you to get you, you must run away from it very fast! Because this is a matter of freedom and captivity!

Work hard, be kind, and amazing things will happen.

Frankly, health care and politics are "inextricably intertwined."

The road that leads to heaven is risky, lonely, and costly in this world, and few are willing to pay the price. Following Jesus involves losing your life-and finding new life in him.

I would love to meet with the Black Caucus, it's great, the Congressional Black Caucus, I think it's great.

I monitor haters' comments. I am aware of vicious rumors, but I am not afraid anymore.

I don't believe in having body doubles for a film.

Amplification is the vice of modern oratory.