My family fears that the Russians will assassinate me.

You need to live in a dome initially but over time you could terraform Mars to look like Earth and eventually walk around outside without anything on. ... So it's a fixer-upper of a planet.

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.

Selling an electric sports car creates an opportunity to fundamentally change the way America drives.

You shouldn't do things differently just because they're different. They need to be... better.

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

There are really two things that have to occur in order for a new technology to be affordable to the mass market. One is you need economies of scale. The other is you need to iterate on the design. You need to go through a few versions.