他们选择了历史上两次大流感作为流感模型，其一是1918年著名的西班牙大流感，死亡人数达五千万至一亿，其二是1957年的流感，杀伤力较前者虽不大，但同样不堪回首。

As model epidemics they chose those of 1918 (the famous “Spanish” flu that is reckoned to have killed 50m-100m) and 1957 (less lethal, but still pretty nasty).

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他们先从两个简单的量入手对一个最优结论做出定义，其一是未传染的数量，其二是未死亡的数量。

As definitions of a good outcome they started with two simple measures: the number of infections averted, and the number of deaths averted.

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其一是关于评估，其二是关于估价。

The first was about timing, the second about estimates.

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In a famous passage from chapter 11 he posits, as he puts it, "a general inclination of all mankind, a perpetual and restless desire " of power after power that ceaseth only in death."

在第十一章的著名段落里，他说，“全人类共有的普遍倾向是,得其一思其二，死而后已,永无休止的权势欲“

耶鲁公开课 - 政治哲学导论课程节选