As long as you keep doing the right thing and have the best product, you can beat the bigger company.

Even though plans themselves are worthless, the exercise of planning is very valuable and totally missing in most startups today.

You should always know how you're doing against your metrics. You should always have a weekly review meeting every week.

You can basically change everything in a startup but the market.

You have to be decisive. Indecisiveness is a startup killer.

The other piece besides focus for execution is intensity. Startups only work at a fairly intense level.

The idea should come first, the startup should come second.