I'm skeptical that the novel will be 're-invented.'

We've got thousands of investors counting on us. And we're a team of thousands of employees all counting on each other. That's fun.

The smartest people are constantly revising their understanding, reconsidering a problem they thought they’d already solved. They’re open to new points of view, new information, new ideas, contradictions, and challenges to their own way of thinking.

If you're not stubborn, you'll give up on experiments too soon. And if you're not flexible, you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve.

If you decide that you're going to do only the things you know are going to work, you're going to leave a lot of opportunity on the table.

Seek instant gratification - or the elusive promise of it - and chances are you'll find a crowd there ahead of you.

Good ideas will always get funded, so that's not going to be a problem. But you will see that it will be harder and harder for bad ideas to get funded.