The way to do terrible things--One way to do terrible things is to lose yourself so you're not an individual anymore but another way to do terrible things is so that the person you're doing it to isn't an individual.

使人变坏的其中一股力量,就是抹杀自己的个性，你不再是自己,而使人变坏的另一股力量,就是抹杀你行恶的对象的个性。

耶鲁公开课 - 心理学导论课程节选