The roots of such rules can be traced back to ancient civilizations.

这些规则的根基可以追溯到古代文明。

youdao

In the ancient time, there were many rules of etiquette.

那么在古代的时候，礼节非常多。

youdao

First, the old city is a complete and artistic relic that follows the rules and systems of ancient China.

第一，旧城沿用了中国古代的建筑规则和系统，是一个非常完整的艺术古迹。

youdao

This rule, which is discussed in detail in the Ten Golden Rules I co-authored with Mike Soupios, summarizes several important features of ancient Stoic wisdom features that remain powerfully suggestive for modern times.

FORBES: An Ancient Rule For Coping With Stress