Why don't you call Ban Men an axe instead of a saw?

The idiom "teaching people with axes" refers to Lu Ban, an ancient craftsman in China. Dancing an axe in front of Lu Ban is a metaphor for showing off skills in front of experts. This idiom comes from Liu Zongyuan's Collection of Mr. Hedong, which is really ironic. Wang's Harmony Poems are Ban Men Axe and Ying Men.

Luban, also known as Lu, lost. During the Spring and Autumn Period, Lu was born in Qufu, Shandong. Legend has it that he is a skillful craftsman, good at carving and architecture, and his skills are unparalleled in the world. People always think that he is the originator of carpenters.

On one occasion, Mei Zhihuan, a poet of the Ming Dynasty, came to Quarrying to pay tribute to Li Bai. Caishiji is a place where Li Bai, a famous poet in the Tang Dynasty, saw the bright moon in the water in folklore. The bright moon is clear and transparent. He bent down to catch it and fell into the river. Because Li Bai left footprints here, legends abound, leaving many places of interest, such as Li Bais Tomb, Chenxian Pagoda and Moon-catching Pavilion. Therefore, Caishiji has become a tourist attraction.

On this day, Mei Zhihuan came to Li Bais Tomb, next to Caishiji Mountain. At first glance, she was greatly dissatisfied. On the Rocky Mountain, on the grave, anywhere where you can write in front of the grave, people have left poems. Those tourists who write nonsense, however, want to pretend to be elegant, and even make up the topic in Li Bais Tomb, which is known as the "poet saint". What are the faces of those poor poets in front of Li Bai? That's ridiculous! Mei Zhihuan thinks more and more uncomfortable. She wrote a poem with emotion: "A pile of earth is quarried by the river, and Li Bai's name is eternal;" There are poems coming and going, and Lu Ban has a big axe in front. "

The earliest prototype of "teaching students how to play with axes" is Liu Zongyuan's "teaching students how to play with axes, trying to save face." It means it's cheeky to manipulate an axe in front of Lu Ban. (Ying, another ancient axe hand) satirizes those who overreach themselves and show off their skills in front of experts.

Mei Zhihuan mocked the tourists who thought they could write poems, and he was "making a big axe in front of Lu Ban". This sentence was simplified by later generations as "teaching fish to swim". In this way, the idiom "teach fish to swim" has been handed down.

Once upon a time, there was a man named Lu Ban, who was famous for his dexterity and was regarded as the father of craftsmen. Experts admire him with admiration.

One day, a young carpenter casually walked to a house in Dahongmen, raised his axe and said, "I don't care about this axe, but no matter what wood it is, as long as I get it in my hand and use my axe to do it, I can make beautiful things."

Hearing this, the people next to him felt that he was too boastful and pointed to the Dahongmen behind him and said, "Ultrafine products, can you make a better door than this?" The young carpenter said proudly, "I'm not bragging." I tell you, I used to be a student of Luban. Can't I make such a simple door? It's a joke. "

Everyone couldn't help laughing and said, "This is Mr. Luban's home. He made this door. Can you really make a better door than this? "

The young carpenter ran away shyly.