"Mouth is to taste, and there are similarities and differences" comes from "Gao Zi Zhang Sentence" in Mencius.
The book Mencius is a compilation of Mencius' speeches, which was written by Mencius and his disciple * * *, and recorded Mencius' language, political views (benevolent politics, Wang Ba's debate, people-oriented, emphasizing the right and wrong of the monarch, valuing the people and despising the monarch) and political actions. Mencius once followed the example of Confucius and led his disciples around the world. But it was not accepted by all countries at that time, and he retired to write books with his disciples. There are seven pieces of Mencius handed down from generation to generation: the upper and lower parts of King Hui of Liang; "Gongsun Ugly" up and down; "Teng Wengong" up and down; "Li Lou" up and down; "Zhang Wan" up and down; "Gaozi" up and down; Up and down with all my heart. The starting point of his theory is the theory of good nature, which puts forward "benevolent governance" and "kingly governance" and advocates rule by virtue. In the Southern Song Dynasty, Zhu Xi called Mencius, The Analects of Confucius, The University and The Doctrine of the Mean "Four Books". Mencius was the largest and heaviest of the four books, with more than 35, words. From then on, the "Four Books" had been a compulsory part of the imperial examination.