渴望权利的心理病态者在陷入绝境时杀人。
Power-hungry psychopaths who killed when they were"cornered".
因为他已经研究了几十个犯罪精神病态者的大脑，他知道应该寻找什么特征。
Because he has studied the brains of dozens of psychopaths, he knew precisely what to look for.
但体现出社会契约或者风险规避的问题则相反，非精神病态者70%的时间都做对了。
For problems cast as social contracts or as questions of risk avoidance, by contrast, non-psychopaths got it right about 70% of the time.
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