You can have a startup and one other thing, you can have a family, but you probably can't have many other things.

If you ever take your foot off the gas pedal, things will spiral out of control, snowball downwards.

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.

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.

Unfortunately the trick to great execution is to say no a lot.

The way to have a company that executes well is you have to execute well yourself.

You need to have a culture where people have very high quality standards in everything the company does, but still move quickly.