Had the people who started Facebook decided to stay at Harvard, they would not have been able to build the company, and by the time they graduated in 2006, that window probably would have come and gone.

I do think Bitcoin is the first [encrypted money] that has the potential to do something like change the world.

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.

Anyone who prefers owning part of your company to being paid in cash reveals a preference for the long term and a commitment to increasing your company's value in the future.

Moving first is a tactic, not a goal.

You have as much computing power in your iPhone as was available at the time of the Apollo missions. But what is it being used for? It’s being used to throw angry birds at pigs; it’s being used to send pictures of your cat to people halfway around the world; it’s being used to check in as the virtual mayor of a virtual nowhere while you’re riding a subway from the nineteenth century.

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