The best people know that they should join a rocketship.

You need to have a culture where people have very high quality standards in everything the company does, but still move quickly.

Losing focus is another way that founders get off track.

These all sounded really bad, but they turned out to be good. If they had sounded really good, there would have been too many people working on them.

Before 20 or 25 employees, most companies are structured with everyone reporting to the founder. It's totally flat.

As the company grows and about this 25 or so employee size, your main job shifts from building a great product to building a great company.

The track record for founders that don't already know each other is really bad.