"人理"这个词不常用，意思是做人的道理，也就是人应该遵守的规则和礼节。

The word "人理" is not commonly used; it means the principles of being human, that is, the rules and etiquette people should follow.

我们平时说话很少用到它，多在书里或正式的地方看到。

We rarely use it in everyday speech; it is mostly seen in books or formal contexts.