Should Be So

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應(yīng)當(dāng)如此。“當(dāng)然”常用來描述事物應(yīng)當(dāng)以如此的方式存在或運(yùn)行，人應(yīng)當(dāng)以如此的方式行事。應(yīng)當(dāng)如此也包含著某種正當(dāng)?shù)?、合理的意義。事物運(yùn)行、人之行事應(yīng)該遵循著正當(dāng)?shù)?、合理的方式或?guī)則。宋代大儒朱熹（1130—1200）認(rèn)為，這種“當(dāng)然”的規(guī)則源自“天理”，是“天理”的具體呈現(xiàn)。因此，對“當(dāng)然”的規(guī)則的探究也成為“窮理”的主要內(nèi)容。

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Dangran?(當(dāng)然), literally meaning "should be so," is often used to describe the fact that something should exist or work in a specific manner, or the fact that someone should behave in a certain way. It implies some degree of legitimacy and reasonableness, indicating that the functioning of things and the conduct of people should adhere to legitimate rules and reasonable manners. The Song Dynasty scholar Zhu Xi (1130-1200) believed that these rules come from and embody?tianli?(天理the natural principles). Therefore, exploring the rules of dangran is the primary focus of?qiongli?(窮理exhausting principles).

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引例 Citations：

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◎至于天下之物，則必各有所以然之故與其所當(dāng)然之則，所謂理也。（朱熹《大學(xué)或問》）

至于天下的事物，則必然各自有著所以如此的原因與所應(yīng)該如此的法則，這就是所謂的理。

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All things in the world have their causes of being so and follow the rules under which they should be so. These aspects are known as?li?(principles). (Zhu Xi: Answers to Questions on The Great Learning)

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◎如事親當(dāng)孝，事兄當(dāng)?shù)苤?，便是?dāng)然之則。（《朱子語類》卷十八）

比如侍奉父母應(yīng)當(dāng)孝順，對待兄長應(yīng)該敬愛這一類的做法，便是應(yīng)當(dāng)如此的規(guī)則。

Parents should be treated with filial piety; elder brothers should be treated with fraternal submission. Such way of behavior naturally should be like that. (Categorized Conversations of Master Zhu Xi)

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