The first step to insight is to ask questions like why do things fall down and not up?

起初的洞察力是问问题,为什么物体坠地而不是上升？

耶鲁公开课 - 心理学导论课程节选

Psychology is not just about illness or health; it is about work,education,insight,love,growth,and play.

心理学关注的不仅仅是疾病或健康状况;,还包括工作，教育，洞察力，爱，成长和玩乐。

哈佛公开课 - 幸福课课程节选