Therefore, Yan Gongsu, assistant minister of the Ritual Department of Longtuge, is famous for his wisdom in creating everything, making lotus flowers leak and serving the world. As long as there is a public office, you must do it. States and counties often exist now. Although there are skilled people, they dare not make a profit or lose money. Xuzhou, on the other hand, was done by monk Wei Pu, who abolished the law and acted arbitrarily. If you ignore the eyes of the world and keep defenders waiting, you will definitely pay more attention to it and people will laugh at it. Dr. Fu Junyi, the son of Guo Zi, is a great-grandson of his grandfather, and his method is detailed. Its general defense is the state, but it is actually a change, so please remember it in history. Yue Ming:

Believers have eyes and ears. Small eyes and light hands. However, if people don't measure by hand, they must measure and weigh. Don't you believe in yourself? Guy thought he didn't mean to lose me, and then he got all the love. So the cold and heat of heaven and earth darkened the sun and the moon. The side of Kunlun Mountain is thinner than 387,000 Li, and three feet of arrows and five barrels can't escape the bottle. Although the thunder is heavy and the rain is small, the snow is heavy and gloomy, it is late and moderate, and it will not suffer. Make every official like a bottle of water, but its quantity is like a floating arrow without losing its rank. If the arrow goes up and down, depending on the time, it will not be humiliated, but it will not be arrogant, then the people will serve me and send me to life and death.

Translation:

Therefore, Yan, assistant minister of the Ritual Department of Longtuge, is famous for her wisdom in creating strange and exquisite articles. He once made a lotus leak, and everyone admired its exquisiteness. Every county where Yen Kung Office works should build new lotus leakage. Up to now, some counties still keep this loophole. Although there are some craftsmen in these places, no one dares to transform them. Only Xuzhou used blind man Wei Pu to make engraving and leakage, which did not meet the requirements of customization and was made at will. There is a leaky pot but no arrow. He has no eyes, so others can't see with their eyes. Let the leaker wait until the water is full, and then empty the water before loading it. No one can but laugh at its shortcomings. Gong Yan's great-grandson, Dr. Jun Fu from Guo Zi, knows Gong Yan's method of engraving leaks like the back of his hand. When he was a judge in Xuzhou, he reformed the engraved leaks in the state and asked Shi to write an inscription for it. The inscription reads as follows:

People believe in hands, feet, ears and eyes. Look at the quantity with your eyes and weigh it with your hands. However, no one weighs things by hand or counts the number of things by eyes, but must use a ruler and a balance. Don't you believe your eyes only believe in artifacts? Only in this way can we truly reflect the temperament of all things. So even the cold and heat between heaven and earth, the darkness and light of the sun and the moon. Even the Kunlun Mountain, 87,000 miles away, can't escape the measurement of three-foot-long leaking arrows and five buckets of leaking bottles. Although there is thunder, wind, rain and snow in the sky, the leakage is even and lagging behind. I will also tell those who are officials, because politicians are like leaking bottled water, which can't be exceeded, and they should always keep balance like floating arrows in the water. Up and down like a floating arrow. With the changes of the times, don't feel ashamed when you are demoted, and don't feel honored and loved when you are promoted, then people will be willing to sacrifice their lives for you.