The single word that matters most I think to keep the company productive as it grows is alignment.

A lot of people treat choosing their cofounder with even less importance than they put on hiring. Don't do this.

You have to find a small market in which you can get a monopoly and then quickly expand.

It's better to have no cofounder than to have a bad cofounder, but it's still bad to be a solo founder.

Mediocre founders spend a lot of time talking about grand plans, but they never quite make a decision.

... fire fast when it's not working. It's better for the company, it's also better for the employee.

Ideas by themselves are not worth anything, only executing well is what creates value.