I read books and talked to people. I mean that's kind of how one learns anything. There's lots of great books out there & lots of smart people.

Fear is a hard thing to deal with. I feel it quite strongly. If I think something is important enough, I'll make myself do it in spite of fear. But it can really sap the will. I hate fear, I wish I had it less.

The primary means of energy generation is going to solar. It will at least be a plurality, and probably be a slight majority in the long term.

It is despairing to consider that the cost and reliability of access to space have barely changed since the Apollo era over three decades ago. Yet in virtually every other field of technology, we have made great strides in reducing cost and increasing capability.

You want to be extra rigorous about making the best possible thing you can. Find everything that's wrong with it and fix it.

I always see what’s... wrong. Would you want that? When I see a car or a rocket or spacecraft, I only see what’s wrong. I never see what’s right. It’s not a recipe for happiness.

Constantly seek criticism. A well thought out critique of what you're doing is as valuable as gold