If you're not in college and you don't know a cofounder, the next best thing I think is to go work at an interesting company.

Even though plans themselves are worthless, the exercise of planning is very valuable and totally missing in most startups today.

Be suspicious of any work that is not building product or getting customers. It's easy to get sucked into an infrastructure rewrite death spiral.

The best people know that they should join a rocketship.

A single mediocre hire in the first five will often in fact kill a startup.

You never want to be in a place where an employee has vested 3 out of the 4 years of stock and they start thinking about leaving.

You can't be focussed without really great communication