A winning team feels good and keeps winning. A team that hasn't won in a while gets demotivated and keeps losing.

Facebook has this famous poster that says move fast and break things. But at the same time they manage to be obsessed with quality.

Losing focus is another way that founders get off track.

One thing that founders always underestimate is how hard it is to recruit.

Here's a good rule of thumb: don't worry about a competitor at all, until they're actually beating you with a real shipped product.

There are exceptions of course, but most companies start with a great idea - not a pivot.

You'll get more support on a hard, important, project than a derivative one.