One of the very big themes in the book is you have to keep going. You can never, ever quit. The question was asked and we decided to write a big thing on it: Why do entrepreneurs fail? What's the number one reason? And essentially, it's because they give up. They quit, if they don't have that stick-to-itiveness, and if you look at successful people unless they were very lucky and born into it, the people that don't quit, that never, ever give up, those are the ones that ultimately become successful.