The tough thing is figuring out what questions to ask, but […] once you do that, the rest is really easy.

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.

The sacred time will define the sacred event.

Delay of pain: that was the meaning of life, wasn’t it?“I’ve made some bad decisions, ” Caine said, not really meaning to say it out loud.

Man to woman

Cats will be cats.

Marriage: A friendship recognized by the police.

Do not be too hard, lest you be broken; do not be too soft, lest you be squeezed.

What is especially irritating about the whole abortion debate is the way the subject has been used as a political football by those on both the right and the left of the political aisle.

Winners are those people who make a habit of doing the things losers are uncomfortable doing.

I don't want to think any longer simply in terms of the Spanish Revolution or the Russian Revolution. It doesn't make any sense to talk [Peter] Makhno to an American.

The Buddha's teaching leads us to the realization that we must always strive to harm no sentient being, human or nonhuman, whether or not it is in our selfish interest to do so.