Idiom story of doing things in the morning and doing things at night

After Yong Zhengdi acceded to the throne, Sun Moon was diligent, cautious and self-motivated, boasting of "doing things at night". Nian Gengyao reversed the word order in the congratulatory table, and wrote "Xi Di Chao Gan" as "Xi Di Chao Gan", praising Yongzheng's hard work. Yongzheng used this as an excuse to be promoted to Dayu.

Calligraphy works are dried in the morning and at night.

The Book of Changes was originally the language of "morning exercise and late admonition". The words of Gangua 92 are: "A gentleman works all day, and if he works late, there is no blame." Dry, in the Book of Changes, has multiple meanings, indicating masculine, masculine, bright, emperor, father and so on. The word "working all day" can be understood as doing aboveboard things all day; If you are diligent in the evening, you should be vigilant and reflect on yourself every night, such as when you are in danger. I ching warned people that as a gentleman, as long as he can do this, there will be no trouble (no blame).

So "go out early and come back late" has become a fixed idiom. Originally, the words with coordinate relationship in Chinese are the other way around, with the same meaning. Sometimes, it is common for the author to make some adjustments to the word order in order to rhyme. Sejong in Qing Dynasty used Nian Gengyao to reverse the word order and set up Dayu. Let's just say he wants to add a few more crimes, but he will always find a solution. But it also makes the word "morning exercise and evening admonition" famous throughout the ages.