translation.en: James Schlesinger -- I'm going to end with this -- says, "Psychologists have attempted to understand how and why individuals and groups who usually act humanely can sometimes act otherwise in certain circumstances."
translation.zh: 我以詹姆斯·施莱辛格的话作为结束， "心理学家已尝试理解, 一般情况下具备人性的个体和群体，为什么以及如何 会在某些情境下，作出反常行为。"