Focusing is all about saying no

That's always been in my mind my metaphor for a team working really hard on something they're passionate about. It's that through the team, through that group of incredibly talented people bumping up against each other, having arguments, having fights sometimes, making some noise, and working together they polish each other and they polish the ideas, and what comes out are these really beautiful stones.

It's very simple: The more successful you are, the more you'll earn. But if you're not successful, you will not earn a dime.

But innovation comes from people meeting up in the hallways or calling each other at 10:30 at night with a new idea, or because they realized something that shoots holes in how we've been thinking about a problem.

I thought deeply about this. I ended up concluding that the worst thing that could possibly happen as we get big and as we get a little more influence in the world is if we change our core values and start letting it slide, I can't do that. I'd rather quit.

The real art is knowing what to leave out, not what to put in.

the best innovation is sometimes the company, the way you organize the company