There's a real opportunity to have a vertical takeoff and landing electric supersonic jet.

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 moral high ground is a lovely place. It won’t stop a missile, though. It won’t alter the trajectory of a gauss round.

There is no better gift a society can give children than the opportunity to grow up safe and free - the chance to pursue whatever dreams they may have.

In this decisive hour of our national history, union means life and division means death.

People are better inside in your head. When you're longing for them, they're perfect.

If the nest is truly empty, who owns all this junk?

It’s hard to feel hurt or frightened when you’re flooded with pity.

Thank God for baseball.

Russians understand the rhythm of despair.

He who shall teach the child to doubtThe rotting grave shall ne'er get out.

It is a common failing of childhood to think that if one makes a hero out of a demon the demon will be satisfied.