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

In general, it's best if you're building something that you yourself need.

You think you have this great idea that everyone's going to come join, but that's not how it works.

Most good founders that I know at any given time have a set of small overarching goals for the company that everybody in the company knows.

... how much time you should be spending on hiring? The answer is 0 or 25 percent.

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.

You really want to know your cofounders for a while, ideally years.