Remember that the idea will expand, and become more ambitious as you go.

When lack of structure fails, it fails all at once. What works totally fine from 0-20 employees, is disastrous at 30.

In the early stage of a startup, hiring senior people is usually a mistake. You just want people that get stuff done.

Cofounder relationships are among the most important in the entire company.

There's no way I know, to get through the pain of a startup without belief that the mission really matters.

Obsess about the quality of the product.

You can create value with breakthrough innovation, incremental refinement, or complex coordination. Great companies often do two of these. The very best companies do all three.