" 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. The students who were so focused on the stress and the pressure—the ones who saw learning as a chore—were missing out on all the opportunities right in front of them. But those who saw attending Harvard as a privilege seemed to shine even brighter. "

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