Let's get somebody. There's a guy waving an arm out there.

我们换个人吧,那个在挥手的人

耶鲁公开课 - 博弈论课程节选

And in this quest for what is best, positive psychology does not rely on wishful thinking, self-deception,or hand waving; instead,it tries to adapt what is best in the scientific method to the unique problems that human behavior presents " in all its complexity."

在追求理想状态时，积极心理学不会盲目主观，或自欺欺人;,相反，它尝试用最科学的方法来探究,极其复杂的人类行为所表现出来的,特殊问题“

哈佛公开课 - 幸福课课程节选