"Preserving justice and extinguishing human desires" was put forward by Zhu, a master of Neo-Confucianism in the Song Dynasty, and it was also a famous saying taken out of context by later generations.

What is Zhu's desire for justice and humanity?

"Diet, justice also; Delicious food, human desire. Husband and wife, heaven also; Three wives and four concubines are also desirable. "

Zhu believes that a healthy and noble life is natural, because people have to eat if they want to survive, and have couples if they want to reproduce. As long as eating is healthy and hygienic, monogamy is more conducive to family harmony. Therefore, diet and husband and wife are natural (that is, "nature"). The lust for pleasure and debauchery is the inner desire of human beings, and it is a dissolute desire above couples who eat and drink. He demanded that people should be natural and healthy, and that husband and wife should live in harmony, not lust and pleasure. What's wrong with this requirement? Shouldn't we keep the principle of eating and drinking? Shouldn't people who want to indulge in prostitution go? Even in modern times, is this idea backward and not worth advocating? If you think Zhu's statement is reactionary, then what is advanced and correct? There is good wine every day, and business women sing every night, right? What is the right thing to do? Eat delicacies and game, keep a few female secrets, bags and small breasts.