and then finally you get him to also open up the refrigerator and get the beer, open the door, and in that way you can train creatures to do complicated things.

最终你还是让他打开了冰箱,取出了啤酒，打开冰箱门，用这种方法,你可以训练各种生物去做些复杂的事情。

耶鲁公开课 - 心理学导论课程节选