“...an external reward can affect one's interpretation of one's own motivation, and interpretation that comes to be self-fulfilling. A similar effect may account for the familiar fact that when someone turns his hobby into a business, he often loses pleasure… — Matthew B. Crawford Copy Share Image
“There is a classic psychology experiment that seems to confirm Brewer's point. Children who enjoy drawing were given marker pens and allowed to go at it. Some were rewarded for drawing (they were given a certificate with a gold seal… — Matthew B. Crawford Copy Share Image
