I never thought of Don Quixote as a business novel, but after reading this, I can see where it could really help entrepreneurs. When starting a company, you've gotta fight those windmills.
UPDATE: I got to thinking about this, and I guess it hinges on how one interprets "fighting windmills." Obviously you don't want to be doing something stupid when you start a company. What I meant was taking on an impossible challenge, and never giving up.
