The first good reason to write a book is to add value to people’s lives.

You know in a startup, you only need three people. You need someone who can make something. You need someone who can sell it. And you need someone to collect the money. That's the only three roles in a startup. So which one are you?

Revolutionary leaders have to care more about what they think of themselves than what the world thinks of them.

I'm a lousy predictor of the future.

The essence of evangelism is to passionately show people how you can make history together.

Crowdsourcing is a great way to approach creation because in any given point there's always somebody on the Internet who knows something better than you do.

Don't worry, be crappy. Revolutionary means you ship and then test... Lots of things made the first Mac in 1984 a piece of crap - but it was a revolutionary piece of crap.