Once your product is working, switch from not caring about this to caring about this a little bit.

One thing that often disrupts momentum and really shouldn't is competitors.

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

We talk to a team they've gotten new things done, that's the best predictor we have that a company will be successful.

You also want people who are maniacally determined and that is slightly different than having a risk tolerant attitude.

So always keep momentum, it's this prime directive for managing a startup.

Startups are very hard no matter what you do; you may as well go after a big opportunity.