I've actually not read any books on time management.

There's a tremendous bias against taking risks. Everyone is trying to optimize their ass-covering.

I realized that a methane-oxygen rocket engine could achieve a specific impulse greater than 380.

You could power the entire United States with about 150 to 200 square kilometers of solar panels, the entire United States. Take a corner of Utah... there's not much going on there, I've been there. There's not even radio stations.

I think there are more politicians in favor of electric cars than against. There are still some that are against, and I think the reasoning for that varies depending on the person, but in some cases, they just don't believe in climate change - they think oil will last forever.

I feel very strongly that SpaceX would not have been able to get started, nor would we have made the progress that we have, without the help of NASA.

You want to do things you’re passionate about but also are useful to other people.