来自《耶鲁大学开放课程：美国革命 第8集 第8集》

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  and with certain natural rights--
  拥有某种自然权利
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  life, liberty, and property--
  生命 自由 财产...
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  and that to protect these rights
  为了保护这些权利
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  people decided to voluntarily leave this state of nature
  人们决定自愿离开这种自然状态
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  to form a civil government,
  形成一个公民政府
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  contracting some of their natural rights to this government
  同时放弃一些
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  when they did so.
  自然权利给政府
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  So civil society was created to protect
  所以文明社会是创造出来保护
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  humankind's three natural rights--
  人类三个自然权利...
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  life, liberty, property.
  生命 自由 财产
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  So you could refer to this as social contract theory,
  你可以把这看成社会契约论
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  a logical enough summing up of it.
  比较合理的概括