Christian Nutt interviews Jesse Schell Lots of really interesting stuff in here - to be returned to, I think.

"I urge you to be vigilant against external rewards. Brush your teeth because it fights tooth decay, not because you get points for it. Read a book because it enriches your mind, not because your Kindle score goes up. Play a game because it's intellectually stimulating or relaxing or challenging or social, not because of your Xbox Live Achievement score. Jesse Schell's future is coming. How resistant are you to letting others manipulate you with hollow external rewards?"