Only two people have been on the cover of Time Magazine in bare feet. I'm one, the other is Gandhi.

People who tell computers what to do, and people who are told by computers what to do.

In a startup, absolutely nothing happens unless you make it happen.

I think that every technology company that's more than 20 years old will break up

There's no such thing as the middle class. It's absolutely vanishing.

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.’

Big breakthrough ideas often seem nuts the first time you see them.