translation.en: Well, why has violence declined? No one really knows, but I have read four explanations, all of which, I think, have some grain of plausibility. The first is, maybe Thomas Hobbes got it right. He was the one who said that life in a state of nature was "solitary, poor, nasty, brutish and short." Not because, he argued, humans have some primordial thirst for blood or aggressive instinct or territorial imperative,
translation.zh: 那么，为什么暴力下降了呢？没有人能真正回答这个问题， 但是，我读到过四种解释，我认为， 还是比较可信的。第一种解释是：或许 托马斯霍布斯是正确的。他说过 自然状态下的生命是“孤独，贫穷，肮脏，野蛮 和短暂的。”不是因为，他申辩到， 人们对血腥行为，进攻本能或领土保护 的原始本能，