"Teaching axe to teach people" is a metaphor to show off one's skills in front of experts. The embryonic form of this idiom began in the Tang Dynasty and was refined in the Yuan Dynasty. Liu Zongyuan, a writer in the Tang Dynasty, said in the preface to Wang Dui's Poems: "Holding an axe at the door of the class is strong." Ban refers to Lu Ban, a famous carpenter in Lu during the Warring States Period, who was good at making exquisite utensils. It should refer to the craftsman stone in the capital of Chu, and also a carpenter with unique skills. In Zhuangzi and Xu Wugui, it is said that a craftsman can cut off the white powder as thin as a fly's wing on the tip of his nose with a big axe, but his nose is not damaged. Liu Zongyuan's words mean: it's shameless to fiddle with the skill of using an axe in front of Lu Ban and Jiang's door. Guan Hanqing, a dramatist in the Yuan Dynasty, also said: "Teaching axes is only a joke." Guan Hanqing's words mean: teach fish to swim, leaving only ridiculous ones. It can be seen that from Liu Zongyuan to Guan Hanqing, they did not advocate teaching fish to swim, but despised teaching fish to swim. In the eyes of the predecessors, teaching fish to teach fish to play tricks has simply become synonymous with overreaching.

However, today, should we advocate teaching fish to swim?

In human history, there are many people who dare to teach axes, and Newton is one of them. Young Newton worked out his first law of motion after careful calculation. At that time, he was just a little-known person, but this truth-seeking Newton immediately ran to the Royal College of England and published his research results in front of many scholars. However, what Newton got at that time was a sneer: "Crazy! Crazy! " Why do those scholars say that? Because they think Newton is playing tricks on others. But historical facts tell people that it is this "fanatic" who became a master of science that will be praised by the whole world.

For a teacher like Newton, we must first affirm his courage to fight with experts. Knowing that I am an expert, I have to compare with you and stand up to overwhelming criticism. "Many people talk about the golden change, and there are no bones left." How many wizards have disappeared in the abyss of human speech in past dynasties. However, people who teach axes can move forward despite difficulties. "Go your own way and let others talk." What courage it is!

Indeed, if you want to improve your professional level, you must be a teacher. Mathematician Hua put it well: "If you want to play with an axe, you must go to the door." Because only by comparison can there be recognition. How capable is "Luban"? How much worse than you? Only through comparison can we find out the gap, learn from each other's strong points and make our technology gradually approach "Luban" or even surpass "Luban". Therefore, those who have the will should boldly find "Luban" to compete and explore again and again, and the gap will become shorter and shorter, and the level will continue to improve. After knowing Han Yu, a great writer in the Tang Dynasty, Jia Dao showed him every article he wrote, asked him for advice, and even competed with him to write poems. He made great progress in learning and eventually became a great poet. It can be seen that teaching people to fish is conducive to the improvement of professional level. Ancient Confucius advocated that learning should be "not ashamed to ask questions". In today's reform and opening up, we should advocate "teaching others how to do it, so we should teach others how to do it". Asking questions without shame is really a way of learning. It's helpful to ask questions if you don't understand. However, people who know less than themselves can't learn much from them. If you teach an axe and ask Luban questions, you will get more. Otherwise, how can you call him "Luban"? Therefore, it is more conducive to improving the professional level than asking questions without shame.

In fact, it is also good for Luban to teach others to play with an axe. No one is perfect, and experts are not omniscient. Compared with "thugs", they can not only find their own shortcomings, but also exchange experiences and learn from each other, which is undoubtedly more conducive to in-depth research and discussion of problems. Teaching others how to teach others how to swim also helps to find talents. How to prove it? If Faraday hadn't recommended himself as David's assistant, the history of electromagnetism would have been rewritten. "Axe juggler" dares to make his talents public and serve the public, and he is also worthy of being a talent. In fact, it is teaching others how to teach others how to teach others how to teach others how to teach others how to teach others how to teach others how to teach others how to do things. 2 1 century is an era of rapid progress of human society, and science and technology are developing at an alarming rate. Whether our country, our Chinese nation, will be eliminated by the times depends on how hard every Chinese son and daughter works. In order to rapidly improve our professional level, become truly useful talents, and become the driving force for China to take off, we should dare to teach others how to teach others how to swim.