Courtesy on one side only never lasts for long.

单方面的礼貌永远不会持久。

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Therefore, a person should first be changed by a teacher's instructions, and guided by principles of ritual. Only then can he observe the rules of courtesy and humility, obey the conventions and rules of society, and achieve order.

因此,一个人首先应该被老师的教导所改变,并遵循礼仪的原则。只有这样,他才能遵守礼貌和谦逊的规则,遵守社会的惯例和规则,实现秩序。