What does Wang Duo, a talented calligrapher, put on Jiangnan?

Legend has it that Wang Duo 18 years old was selected, entered imperial academy at the age of 20, entered the Imperial Academy at the age of 2 1 year old, and took the Jiangnan Examiner at the age of 22. When Jiangnan people greeted the examiner, they saw two flags in front of the sedan chair. One flag says "study hard at a cold window for ten years", and the other says "It is not difficult to obey mother's orders." When people look into the car, they see that the examiner is a young scholar and doesn't look like a well-read person at all. Everyone has private discussions. Some people say that he is a fertile child and the master of the government. I can't be a real scholar with my grandfather and Lao Tzu as big officials! Needless to say, there is no problem. In fact, he is not very knowledgeable. I'm afraid the most he knows is "learning from time to time". Wang Duo heard clearly in the car. Sure enough, the first question is: "Confucius said to study from time to time." Many people say that, as expected, the papers will be handed in soon. The second scene is still the original title, but the content is not allowed to be repeated. This really stumped everyone. They used up all the knowledge they had learned before they reluctantly handed in their papers. I didn't expect the third scene to be the same topic. Many people were complaining and it was difficult to deal with. Most people searched their stomachs and handed in a blank sheet of paper. After the list was published, Wang Duo laughed and wrote seven articles in public with elegant words, rich literary talent, excellent comments and different articles. At that time, I was shocked by four people, as well as the prestige and shock. At that time, other families had a plaque that read "Jiangnan Scholar". Only Wang Duo hung a plaque on his head that read "Only Jiangnan has pressure".