Civilized nature and human society can not be created solely by practice.

人化自然、人类社会不可能单凭实践创造产生。

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The gradation and norm are two categories which reflect the law of unity of opposites in nature and human society.

级次与标准是反映自然界、人类社会各个方面对立统一规律的两个范畴。

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All the things in nature and human society contain contradictions inside, which tend to repel, oppose each other and unite.

自然界和人类社会的一切事物内部都包含着矛盾，都具有相互排斥、相互对立而又相互统一的倾向。

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Aristotle went on to say that the justice needed to control this dark side of human nature can be found only in a well ordered society of free people who govern themselves, and the only one that he knew was the Polis of the Greeks.

亚里士多德还说过,正义需要用来,控制人性的丑恶面,只有在公民自治的秩序井然的,社会里才能找得到正义,他所知道的这样的社会就是希腊城邦

耶鲁公开课 - 古希腊历史简介课程节选

Such is human nature, and we can see it in many areas of society, whether in decisions about medical care or environmental conservation.

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