We need to figure out how to have the things we love, and not destroy the world.

Going from PayPal, I thought: 'Well, what are some of the other problems that are likely to most affect the future of humanity?' Not from the perspective, 'What's the best way to make money?'

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

The reason we should do a carbon tax is because it's the right thing to do. It's economics 101, elementary stuff.

We have a strict 'no a-hole policy' at SpaceX. And we fire people they are. I mean, we give them a little bit of warning. But if they continue to be an a-hole, then they're fired.

I don't think very highly of Henrik Fisker. [...H]e thinks the reason we don't have electric cars is for lack of styling

Engineering is the closest thing to magic that exists in the world.