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.

I walk into a company office and I can tell often whether I'm gonna invest, as soon as I walk in.

Barrels are very difficult to find. But when you have them, give them lots of equity. Promote them, take them to dinner every week, because they are virtually irreplaceable because they are also very culturally specific. So a barrel at one company may not be a barrel at another company. One of the ways, the definition of a barrel is, they can take an idea from conception and take it all the way to shipping and bring people with them.

The office environment that people live in and work in, dictates your culture and how people make decisions.

Basically this is what you want - a high performance machine that idiots can run.

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

Treat customer support as a product.