Obsess about the quality of the product.
Stay focused and don't try to do too many things at once. Care about execution quality.
It's easy to move fast or be obsessed with quality, but the trick is you have to do both at a startup.
You need to have a culture where people have very high quality standards in everything the company does, but still move quickly.
Facebook has this famous poster that says move fast and break things. But at the same time they manage to be obsessed with quality.
