When naive people discover the capacity for anger within themselves, they are shocked, sometimes severely. A profound example of that can be found in the susceptibility of new soldiers to post-traumatic stress disorder, which often occurs because of something they watch themselves doing, rather than because of something that has happened to them. They react like the monsters they can truly be in extreme battlefield conditions, and the revelation of that capacity undoes their world. And no wonder. Perhaps they assumed that all of history’s terrible perpetrators were people totally unlike
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