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.

I believe we are in a world where innovation in stuff was outlawed. It was basically outlawed in the last 40 years - part of it was environmentalism, part of it was risk aversion.

University administrators are the equivalent of subprime mortgage brokers selling you a story that you should go into debt massively, that it's not a consumption decision, it's an investment decision. Actually, no, it's a bad consumption decision. Most colleges are four-year parties.

You want to be the last company in a category. Those are the ones that are really valuable.

We need more pessimism that the future might be a lot worse, and we need more optimism that the future might be better.

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

Everybody has a product to sell—no matter whether you’re an employee, a founder, or an investor. It’s true even if your company consists of just you and your computer. Look around. If you don’t see any salespeople, you’re the salesperson.