This sentence comes from Mencius. The general idea is that the monarch treats his lieutenants as his own brothers, and the lieutenants treat the monarch as their own heart; The monarch treats his lieutenants like dogs and horses, and his lieutenants treat the monarch like passers-by; The monarch treats his lieutenants like dirt and dirt, and his lieutenants treat the monarch like bandits and enemies.

A wise monarch always knows this truth, so when he treats his lieutenants like brothers, he will treat the monarch as his heart and repay him with death. For example, Liu Huangshu used Guan Yu, Zhang Fei and Zhuge Liang, which has been passed down as a beautiful talk.

Extended data:

How people treat you depends on how you treat others. If the king doesn't care about his courtiers, doesn't treat talents with courtesy, and thinks about his own interests all day long, but asks his courtiers to devote themselves wholeheartedly and do their duty for the court, how can that be possible?

The king treats his courtiers as his own brothers and sisters. When you find your subordinate courtiers, he will double the feedback, and he will care for the king like his own confidant.

If the king hired the courtiers and thought that I was paid, it would be good for you to be a cow and a horse for me. He treated him like a dog and a horse. As a result, you found that when the courtiers met the king and you were in danger, they just treated you like ordinary people, let alone like Wen Tianxiang.

Kings regard courtiers as dirt and dirt, so courtiers hate them as enemies when they talk about kings.

References:

Baidu encyclopedia-the way of monarch and minister, kindness is rewarded