All happy companies are different: each one earns a monopoly by solving a unique problem. All failed companies are the same: they failed to escape competition.

I no longer believe that freedom and democracy are compatible.

Our economy is broken. I'm not a politician, but neither is Donald Trump. He is a builder, and it's time to rebuild America.

If you think your initial market might be too big, it almost certainly is.

If you focus on near-term growth above all else, you miss the most important question you should be asking: will this business still be around a decade from now?

In the U.S., we fundamentally need to do new things, which I think is harder for the government to do. And moreover, it is not something our government actually is inclined to particularly do.

People don't want to believe that technology is broken. Pharmaceuticals, robotics, artificial intelligence, nanotechnology - all these areas where the progress has been a lot more limited than people think. And the question is why.