Execution gets divided into two key questions: 1) can you figure out what to do and 2) can you get it done.

The tenth social network, and limited only to college students with no money, also terrible. Myspace had won.

You need conviction in your own beliefs, and the willingness to ignore others naysaying.

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

People that are really smart and that can learn new things can almost always find a role in the company as time goes on.

The best source by far for hiring is people that you already know and people that other employees in the company already know.

The hard part is that this is a very fine line. There's right on one side of it, and crazy on the other.