June 13 is Luban's birthday every year. His surname is Gong Bo. Because he is a native of Lu, the pronunciation of "Xiang" and "Ban" is the same, which is very common in ancient times, so people often call him Lu Ban. Lu Banyue was born in 507 BC and died in 444 BC. Living in the late Spring and Autumn Period to the early Warring States Period, I was born in a family of craftsmen for generations. I have participated in many civil engineering jobs with my family since I was a child, and gradually mastered the skills of productive labor and accumulated rich practical experience. The legends of chisels, shovels and other tools were also invented by Lu Ban. For more than 2,400 years, they have been regarded as "ancestors" by folk craftsmen.

Mozi was in 476 BC, and Lu Ban was about 20 years older than Mozi. They were famous craftsmen at that time, but they didn't become bosom friends. On the contrary, they used to fight with each other.

One day, Lu Ban boasted to Mozi, "I have a hook that I won't fight on the boat. Is your righteousness also rejected? " . Mozi said, "I hook with love and refuse with courtesy." You hook people, people will hook you; If you refuse others, others will refuse you. Isn't the rejection of' righteousness' better than that of' boat'? "Ruban was speechless.

Lu Ban took out his invention: a wooden magpie can fly for three days without landing. Mozi said, "This wooden magpie is not as good as the handlebars cut by an ordinary craftsman in an instant. Once the handlebar is mounted on the axle, the cart can carry fifty loads. " And what's the practical use of your magpie? What carpenters do is good for people, and what is bad for people can only be called clumsiness. "

King Chu asked Lu Ban to make some siege equipment, especially a kind of equipment called ladder. In order to test the power of siege equipment, the king of Chu decided to attack the Song State to test the power of siege equipment such as ladders. When Mozi heard about it, he went to Chu for ten days and ten nights to persuade the king of Chu and Lu Ban to give up fighting with Song. Before the king of Chu, Mozi and Lu Ban had three contests about offensive and defensive warfare, and this contest was completely won by Mozi, which can be said to be better than Lu Ban in terms of craftsmen.

Although in words, Lu Ban was no match for Mozi in a competition, in production practice, after repeated research and experiments, Lu Ban invented many woodworking tools and appliances, which liberated the craftsmen at that time from the original heavy labor, doubled the labor efficiency and took on a new look in civil engineering.

The modern idiom "teaching people with axes" is also related to Lu Ban. It means: dancing in front of Lu Ban with an axe. Showing off one's skills in front of experts.

As the saying goes, "turning a blind eye to Mount Tai" means that Lu Ban eliminated a teacher who taught Mount Tai. A few years later, Lu Ban wandered in the street and suddenly found many well-made furniture, which was very popular with people. Luban wants to know who this man is. He was so powerful that someone said to him, "It's your apprentice Taishan." Lu Ban couldn't help but sigh with emotion: "I really don't know Mount Tai!"