If I went under here and then the people said, "Where the hell did he go? Class is over," that would show a lack of object permanence.

如果我蹲在这里,有人说,"他去哪了,下课了耶",这话就表现出他缺乏客体永存性的概念

耶鲁公开课 - 心理学导论课程节选

And fairly soon into the conversation I demonstrated some principle that you've probably learned in your physics class having to do with an object at rest remaining at rest unless acted upon by a force.

很快，在交谈中,我就展示了一些原理,可能你们在物理课上学过,要使静止的物体保持静止,必须有外力作用。

耶鲁公开课 - 心理学导论课程节选