If you don't need it yourself, and you're building something that someone else needs, realize you're at a big disadvantage.

One of the biggest advantages that start ups have is execution speed and you have to have this relentless operating rhythm.

The startups that do well are the ones that are working all the time.

You really want to know your cofounders for a while, ideally years.

Why now, why is this the perfect time for this particular idea, and to start this particular company?

It's difficult to get large groups of people, to the extreme levels of focus and productivity that you need, for a startup to be successful.

... but actually it sucks to have a lot of employees, and you should be proud of how few employees you have.