After being laughed at, Zheng Guoren always felt like a loser, "Am I really that stupid?" He was not convinced that he was worse than others, so he decided to think of a way to prove his intelligence. He participated in study classes successively and read books from ancient and modern times, both at home and abroad. Through his studies, he discovered a problem that had never been noticed by anyone: It would be foolish to go home to get the size, and it may not be so convenient to try on shoes with your own feet. Because it must have a condition, that is, I must go in person. How can we think of a way to get the best of both worlds? He thought hard, forgot to eat and sleep, and finally came up with a method that satisfied himself. He decided to try it. So he spared no expense, rented a site, hired a group of workers, and decided to start implementing his plan. He first specified the size of the shoes, and then asked the workers to make shoes according to the specified sizes. The first batch of shoes were produced, and he took the lead. Through the lesson learned last time, he firmly remembered that his feet were 8 inches, so he tried on a pair of 8-inch shoes and they were just right. He shouted "success" , immediately applied for a patent, trademarked it as "Zheng's", and chained it nationwide. This time, everyone in Zheng Guo knew about the "Zheng's" Shoes Co., Ltd. and praised him for how smart he was. However, he was not satisfied with the status quo and decided to set up a joint venture with a foreign country. Since "inch" is a unit of measurement in China and is not universally accepted around the world, he changed the original 8-inch to size 42, the 7-inch to size 40, and so on, and formulated a formula for converting to international shoe sizes. Shoe sizes have been passed down in this way. Now everyone can buy shoes that suit them based on the shoe size. Occasionally, when traveling on business, it is no longer difficult to buy a pair of shoes for your family, as long as you remember the size. We have to say that Zheng Guoren is indeed very smart. He is good at summarizing lessons and seeking success in failure. Will we be like the Zheng people after being laughed at by others? Don’t be discouraged or discouraged, and give full play to your talents?