We believe SpaceX will become the world leader in space transport, and we want our investors to be part of that future.

We had a mission at PayPal - which was to create a new financial system, a new world currency, and we failed. We were a financial success, but we didn't succeed at the purpose of our company.

Halcyon people have put aside and left their homes, their million dollar salaries, full professorships at major universities, and fully seed-funded startup companies to be part of this effort.

I have realised more and more that great companies, founded for a long-term purpose, such as Google or Facebook or SpaceX, may do more good in the world than any other vehicle that we have.

When I think about privacy on social media sites, there's kind of the usual suspect problems, which doesn't make them any less important or severe; it's just we kind of know their shape, and we kind of know how we're going to solve them.

I think people are tired of fake music, man. And there's a lot of it. Technology has reached the point where any boob can walk into a studio and with a little AutoTuning you can have a hit song. I think it's pathetic.

The chalkboards are no longer cutting it. We've got to adapt education at every level to this new paradigm to keep our kids competitive. Affordability of technology has to be at the forefront of everything we do.

The Internet is a politically contested space.