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.

The office environment that people work in everyday dictates the culture that you are going to be in.

I don't believe ever in shared office spaces. Peter talks a little bit about this, every good startup is a cult. It's very hard to create a cult if you're sharing space with people.

Being a venture capitalist to me is like being more of a psychologist. So if you come to my office we have two chairs with a table in the middle. And we sit down and it's like, Tell me your problems.

You generally know when someone asks you to do something- am I more writing, or am I more editing? The editor is the best metaphor for your job.

Build a company that idiots could run because eventually they will.

It's actually a good thing if you do reference checks on somebody and half the people you call say they are a micromanager and the other half say they actually give me a lot of responsibility. That's a feature not a bug.