I just want to retire before I go senile because if I don't retire before I go senile, then I'll do more damage than good at that point.

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.

Feel your emotions, Live true your passions, Keep still your mind.

Your prayer for someone may or may not change them, but it always changes YOU.

... there are certain questions that must never be asked. Of anyone. Even oneself.

What art offers is space - a certain breathing room for the spirit.

Going out with other actors is never good; actresses are neurotic, and actors are horrendous egotists.

Capitalism will continue to eliminate mass poverty in more and more places and to an increasingly marked extent if it is merely permitted to do so.

What's wrong?" I didn't say a word." Something's up. What is it?" Nothing." His head turned, gaze going to mine. "Yeah?" Yes." A snort and he returned to his bowl.

Junk food, junk religion, and junk products just leads to excessive numbers of junk people living junk lifestyles.

The cost of stability is often diminished opportunities for growth.

I hope in my book [My Beloved World], that the sense that I really feel connected comes through.