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

People that are really smart and that can learn new things can almost always find a role in the company as time goes on.

In the early days of a startup, people's compensation is whatever you negotiate with a founder and it's all over the place.

You also want to fire people who a) create office politics, and b) who are persistently negative.

... and you can only have 2 or 3 things everyday, because everything else will just come at you; you know fires in a day.

Cofounder relationships are among the most important in the entire company.

It's better to have a few users love your product than for a lot of users to sort of like it.