Just put a little pin in your mind: when you cross 50 employees, there are a new set of HR rules that you have to comply with.

Press releases are easier to write than code, and that is still easier than making a great product.

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.

The role of the board is advice and consent. If the CEO does not lay out a clear strategy and tries to get the board to set one, it will usually end in disaster.

You're either not hiring at all or it's probably your single biggest block of time.

Remember that you are more likely to die because you execute badly than get crushed by a competitor.