The historical story of "Know what is best" is: "In the past, Jin Wengong liked the tattered clothes worn by literati very much, so all the courtiers of Wen Gong wore furs, cowhide swords and hats made of boiled silk. When they went in, they could see the monarch, and when they went out, they could go back and forth between the imperial courts. Because the monarch likes it, the minister will do it. "

The phrase "superior to inferior" comes from Mozi's "All Love".

Mozi, whose real name is Zhai (dí), was born in the Song Dynasty in the late Eastern Zhou Dynasty and the early Spring and Autumn Period and the Warring States Period. , said luyang people, said tengguoren. Mozi is a descendant of Mu Yi, a noble in the Song Dynasty? He was a doctor in the Song Dynasty. ? He was the founder of Mohism and a famous thinker, educator, scientist and strategist in the Warring States Period.

Universal love means loving different people or things at the same time. An ethical theory advocated by Mozi during the Spring and Autumn Period and the Warring States Period. In response to the Confucian saying that "love has equal difference", he advocated that love has no hierarchy, regardless of thickness or closeness. There are three articles in Mozi, which explain their views.

Mozi is divided into two parts: one part records Mozi's words and deeds, expounds Mozi's thoughts, and mainly reflects the early Mohist thoughts; On the other hand, Shang Jing, Xia Jing, Jing Shuo Shang, Jing Shuo Xia, Daqu and Xiaoqu, generally called Mo Bian or Mo Jing, embody Mohist epistemology and logical thought, and also contain many natural science contents, reflecting Mohist thought in the later period.

The sentence "the upper class is good, the lower class is good" means: what kind of hobbies do the upper class people have, and the lower class people must have stronger hobbies.