《水经注·卷六》
老城左右两边都是幽深的山涧，城南朝向一条大沟，俗称狼马涧。旧时截断山涧来筑城，有南门和北门，城门和老城墙还在。
左右夹涧幽深，南面大壑，俗谓之狼马涧，旧断涧为城，有南、北门，门闉故壁尚在。
To the left and right of the old city are deep mountain streams, and to the south of the city is a large trench, commonly known as the Wolf and Horse Stream. In the past, the mountain streams were intercepted to build the city, and there were south and north gates. The city gates and the old city walls are still there.
<s>[INST] Highlight and translate the key terms in the Classical Chinese text: 天行有常，不为尧存，不为桀亡， and explain their significance in the context of the passage. [/INST]
Key terms and their translations:
天行有常：the movement of the heavens is constant
不为尧存：does not exist for Yao
不为桀亡：does not perish for Jie
Final English translation: The movement of the heavens is constant; it does not exist for Yao, nor does it perish for Jie.
Significance: This passage expresses the idea that the natural order of the universe is unchanging and unaffected by the actions of human rulers, both good and bad. It is an important concept in Chinese philosophy, and it has been used to justify both political order and social change.</s>
Highlight and translate the key terms in the Classical Chinese text: 天行有常，不为尧存，不为桀亡， and explain their significance in the context of the passage.
user
Key terms and their translations:
天行有常：the movement of the heavens is constant
不为尧存：does not exist for Yao
不为桀亡：does not perish for Jie
Final English translation: The movement of the heavens is constant; it does not exist for Yao, nor does it perish for Jie.
Significance: This passage expresses the idea that the natural order of the universe is unchanging and unaffected by the actions of human rulers, both good and bad. It is an important concept in Chinese philosophy, and it has been used to justify both political order and social change.
assistant