a subjective person who expresses different opinions
It means to believe in one theory and reject another; to regard the former as master and the latter as slave. The latter refers to the sectarianism in academic thought.
The origin of Idioms
Han Yu, Tang Dynasty, wrote in Yuan Dao: "if you enter there, you must come from this; if you enter, you will be master, if you leave, you will be slave; if you enter, you will be attached, if you leave, you will pollute."
Idiom usage
Combined; as predicate; with derogatory meaning; refers to a family opinion.
Examples
He often held the view that he was the leader of the clan. The seventh volume of Xia Wai Tiao
In Ming history, volume 2300, biography of Ma Mengzhen, it is said that "the officials are divided into different families, and they become masters and slaves. They love and hate from the heart. They have a good reputation, gossip and enter the forbidden court. 」
a subjective person who expresses different opinions
Chicken and insect win and lose - jī chóng dé sàng
the morning breeze and the lingering moon - xiǎo fēng cán yuè
Love the sun and cherish the strength - ài rì xī lì