Just put a little pin in your mind: when you cross 50 employees, there are a new set of HR rules that you have to comply with.

You also want people who are maniacally determined and that is slightly different than having a risk tolerant attitude.

In addition to relentlessly resourceful, you want a tough and a calm cofounder.

I think as a rough estimate, you should aim to give about 10% of the company to the first 10 employees.

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 startups that do well are the ones that are working all the time.

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.