" Afterward, I jokingly asked Salim why the children of Soweto were so weird. “They see schoolwork as a privilege,” he replied, “one that many of their parents did not have.” When I returned to Harvard two weeks later, I saw students complaining about the very thing the Soweto students saw as a privilege. I started to realize just how much our interpretation of reality changes our experience of that reality. "

― Shawn Achor , The Happiness Advantage: The Seven Principles of Positive Psychology That Fuel Success and Performance at Work