In front of the Daoist Academy in Liangcheng's hometown, there is a couplet that vividly shows the different personalities of The Second Cheng: the upper link is "The Spring Wind and the Qi Are Pure", and the lower link is "The Hot Sun and Autumn Frost are Positive". "Spring wind and qi" means that Cheng Hao has the feeling of sitting on the spring wind, and "scorching sun and autumn frost" means that Cheng Yi has the fierceness and harshness of the scorching sun and autumn frost. Students evaluate Cheng Hao as warm as jasper, and Cheng Yi as pure as fine gold.
The different personality meteorology of Ercheng can also be found in Cheng Hao's evaluation of Confucius, Yan Hui, and Mencius. Cheng Hao said, "Zhongni, Yuan Qi also." Yan Zi, Haruhi also. Mencius and Autumn killed everything. Jonny, heaven and earth also. Yan Zi, and Feng Qingyun also. Mencius, the meteorological of Taishan Rock and Rock. (Ercheng Ji, p. 76) This means that Confucius is like a cloud of vitality; Yan Hui is like the spring in which all things grow; Mencius is like the autumn of slaughter. Confucius, like the heavens, carries everything; Yan Hui, like a gentle wind, auspicious clouds; Mencius, has the weather of Mount Tai towering majestically. Cheng Hao receives people and things in a harmonious manner, such as the wind and rain, and has the weather of Yan Hui; Cheng Yi is like Mencius who has the majesty of Mount Tai.
Cheng Hao's meteorology was more influenced by Zhou Dunyi. When Cheng Hao studied with Zhou Dunyi, Zhou Dunyi's spilled bosom of "Light Wind and JiYue" had a great influence on him, and Cheng Yi said that he said goodbye to "after Uncle Zhou Mao, there is a meaning of me and Dianye". It means that the same idea as Zeng dian has been born, and it is not intended to be an official. Cheng Yi's fortitude and solemnity were more influenced by Hu Yan. When Cheng Yi was in his 20s studying in Taixue, he studied with Hu Yan, who was a majestic person and often drank from his students and asked them to walk and straighten their chests. At the same time, Cheng Yi has always expected to become a saint with virtue and abide by the Book of Rites: "Where the way of learning, strict teachers are embarrassed." Shi Yan followed by Dao Zun, Dao Zun and then Minzhi Respect. "I believe that only a strict teacher can be respected and set an example for a strict teacher." (October 30)