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

I've actually made a prediction that within 30 years a majority of new cars made in the United States will be electric. And I don't mean hybrid, I mean fully electric.

I think it's very important to have a feedback loop, where you're constantly thinking about what you've done and how you could be doing it better.

I do love email. Wherever possible I try to communicate asynchronously. I'm really good at email.

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

Land on Mars, a round-trip ticket - half a million dollars. It can be done.

Silicon Valley has some of the smartest engineers and technology business people in the world.

You need to be in the position where it is the cost of the fuel that actually matters and not the cost of building the rocket in the first place.

A battery by definition is a collection of cells. So the cell is a little can of chemicals. And the challenge is taking a very high-energy cell, and a large number of them, and combining them safely into a large battery.

My vision is for a fully reusable rocket transport system between Earth and Mars that is able to re-fuel on Mars - this is very important - so you don't have to carry the return fuel when you go there.

Yeah, well I think anyone who likes fast cars will love the Tesla. And it has fantastic handling by the way. I mean this car will crush a Porsche on the track, just crush it. So if you like fast cars, you'll love this car. And then oh, by the way, it happens to be electric and it's twice the efficiency of a Prius.