Where I grew up, we had the three TV networks, maybe two radio stations, no cable TV. We still had a long-distance party line in our neighborhood, so you could listen to all your neighbors' phone calls. We had a very small public library, and the nearest bookstore was an hour away.

Ten to 20 years out, driving your car will be viewed as equivalently immoral as smoking cigarettes around other people is today.

Almost every dot-com idea from 1999 that failed will succeed.

The great companies get built by their founders

I've been an entrepreneur three times. I started three companies.

If I want to get work done, that's usually about 3 in the morning.

Most of the big breakthrough technologies/companies seem crazy at first: PCs, the internet, Bitcoin, Airbnb, Uber, 140 characters.. It has to be a radical product. It has to be something where, when people look at it, at first they say, ‘I don’t get it, I don’t understand it. I think it’s too weird, I think it’s too unusual.’