“Enjoying what you do, loving what you do is such a completely unfair advantage to anyone you are competing with who does it for a job. People who love it they go to bed at night thinking about the solutions. They wake up in the middle of the night, and they jot down ideas, they work weekends. It turns out that effort is a huge component of success in almost everything”
— Steve Levitt - Freakonomics: http://goo.gl/4mY2Er
