The key metric of whether you've succeeded is what fraction of your employees use that dashboard everyday.

There are three things you need to do as a CEO-founder. Think strategically, drive design, and drive technology. Some people who are really good at one can build a pretty foundational company. Most people who are very successful are good at two. But Jack is the only person in the Valley I've met who's all three. He's a first-rate strategist, a first-rate designer, and a first-rate technologist.

Any executive, any CEO should not have 1 management style. Your management style needs to be dictated by your employee.

The job of an editor is to ensure a consistent voice.

The key to culture is it's a framework for making decisions. And if it's baked into your culture, people learn how to make decisions across that culture without you ever saying anything. You never have to really do anything except watch and promote and move people around.

Usually when you hire more engineers, you actually don't get that much more done, you actually sometimes get less done.

The key metric of whether you've succeeded is what fraction of your employees use that dashboard everyday.