It means: Although I am not a sage, I have just seen a lot of things. Why don't I cut the long pole in the middle with a saw and enter the city gate?
Source: "Cut the pole and enter the city" - Wei and Jin Dynasty, Handan Chun
If someone from Lu holds a long pole and enters the city gate, if he holds it upright at first, he will not be able to enter; if he holds it horizontally, he will not be able to enter. Not accessible. Nothing comes out of the plan. Then an old father came and said, "I'm not a saint, but I've seen a lot of things! Why not cut it in with a saw?" So he cut it off.
Translation: There was a man in the state of Lu who entered the city gate with a long pole. At first he held it upright, but he could not enter the city gate. When he held it sideways, he could not enter the city gate. He really wanted to Nothing can be done. Soon, an old man came here and said, "Although I am not a sage, I have just seen a lot of things. Why don't I cut the long pole in the middle with a saw and enter the city gate?" So the man from Lu followed the old man's method. The long pole was cut off.
Extended information
1. The creative background of "Cut the Gun and Enter the City"
"Cut the Gun and Enter the City" comes from the ancient joke collection "Laughing Forest". "Laughing Forest" was written by Handan Chun of the Wei Dynasty in the Three Kingdoms. It has three volumes and records all humorous stories. It is the earliest joke book in ancient my country. The original book has been lost, but more than 20 copies exist today.
2. Introduction to the author of "Cut the Gun and Enter the City"
Handan Chun (about 132-221), named Zishu, was born in Yangzhai, Yingchuan (now Yuzhou, Henan Province) in the Eastern Han Dynasty Shi, a calligrapher from the Wei Dynasty in the Three Kingdoms. He is famous for authoring three volumes of "Laughing Forest" and one volume of "Art Classic", and is called the ancestor of Xiaolin. Chun was famous for his talents since he was a child, he was erudite and good at writing articles, and many people around him knew his name.