You want an idea that turns into a monopoly. But you can't get a monopoly, in a big market right away; too much competition for that.

... and you can only have 2 or 3 things everyday, because everything else will just come at you; you know fires in a day.

For most software startups, this translates to keep growing. For hardware startups, it translates to don't let your ship date slip.

You only get points when you make something the market wants. So if you work really hard on the wrong things, no one will care.

When it comes to starting startups, in many ways, it's easier to start a hard startup than an easy startup.

If someone is choosing between joining McKinsey or your startup it's very unlikely they're going to work out at the startup.

Firing people is one of the worst parts of running a company. Actually in my own experience, I think it is the worst.