You want an idea that turns into a monopoly. But you can't get a monopoly, in a big market right away; too much competition for that.

More important than starting any startup, is getting to know a lot of potential co-founders.

In general don't start a startup you're not willing to work on for ten years.

Remember that you are more likely to die because you execute badly than get crushed by a competitor.

If you don't need it yourself, and you're building something that someone else needs, realize you're at a big disadvantage.

We hear again and again from founders, that they wish they had waited to start a startup until they came up with an idea they really loved.

I really believe that the single hardest thing in business is building a company that does repeatable innovation... and just has this ongoing culture of excellence as it grows.