It is said that one day, Zhuge Liang went to Dongwu as a guest and designed a pagoda for Sun Quan. In fact, it was Mr Zhuge Liang who wanted to weigh the weight of Soochow and see if Soochow could build an artificial tower. That pagoda is very demanding. The copper gourd at the top alone is 50 feet high and weighs more than 4,000 kilograms. Sun Quan was stumped, sallow and emaciated. Later, I found a smelter, and there was a shortage of people to make copper gourd model, so I posted a list of recruiting talents on the city gate. After a month, I still got nothing. Zhuge Liang paced on the list of recruiting talents every day and shook his goose feather fan happily.

There are three cobblers setting up stalls at the city gate. They are ugly and illiterate. Everyone calls them ugly cobblers. When they heard that Zhuge Liang was making fun of Wu Dongren, they were unconvinced and got together to discuss. It took them three days and nights to finally cut a gourd by cutting shoes. Then, cut the material from cowhide, and sew the model of gourd with awl and awl. When pouring copper water, first bury the gourd in the sand. This move is a success. Zhuge Liang got the news that copper gourd poured water, and immediately said goodbye to Sun Quan, and never looked down upon Dongwu again. The story of "three heads are better than Zhuge Liang" has thus become a profound proverb.