The thing that's worth doing is trying to improve our understanding of the world and gain a better appreciation of the universe and not to worry too much about there being no meaning. And, you know, try and enjoy yourself. Because, actually, life's pretty good. It really is.

The extension of life beyond Earth is the most important thing we can do as a species.

I think that's the single best piece of advice: constantly think about how you could be doing things better and questioning yourself.

Automotive franchise laws were put in place decades ago to prevent a manufacturer from unfairly opening stores in direct competition with an existing franchise dealer that had already invested time, money and effort to open and promote their business.

The fuel cell is just a fundamentally inferior way of delivering electrical energy to an electric motor than batteries.

I think it's important to reason from first principles rather than by analogy. The normal way we conduct our lives is we reason by analogy. [With analogy] we are doing this because it's like something else that was done, or it is like what other people are doing. [With first principles] you boil things down to the most fundamental truths…and then reason up from there.

It's just mind-blowingly awesome. I apologize, and I wish I was more articulate, but it's hard to be articulate when your mind's blown-but in a very good way.