The thought of rules and etiquette, the core of Xun Studies, is the product of his times.

荀学之内核——礼法思想是他所处时代的产物。

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The only problem with such superb forward thinking is that the Royal Family is still very much backward and old fashioned when it comes to some matters, namely rules and etiquette.

不过，虽然皇室的思想慢慢变的现代前卫，但在某些方面，其观念仍然非常传统，比如关于规矩和礼节。

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Visiting cards used to be an indispensable attribute of the etiquette and the rules of their use were as sophisticated as those of cutlery.

在过去，名片是礼仪中不可或缺的一部分，其使用规则就像餐具的使用规则那样复杂。

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Adults struggle to keep up with the shifting rules of online etiquette and information sharing.

CNN: Why parents should educate their kids about tech

Before making the switch, PricewaterhouseCoopers encouraged its employees to follow some basic rules of etiquette, reminding them, for instance, not to leave uneaten food in someone else's office and urging them to replace office supplies they used.

WSJ: Warming Up to the Officeless Office