Have an eye for Mount Tai.

Ignorance of Mount Tai is an idiom in China, and its pinyin is: y ǒ uy ǐ nb ǐ shí tà ish ā n Interpretation: Although you have eyes, you don't know Mount Tai. The metaphor is too narrow to recognize people with high status or great skills.

As the saying goes, Mount Tai is not Mount Tai in Shandong, but here is a short story. The carpenter's granddaddy is Lu Ban, who has exquisite craftsmanship and is very clever. Legend has it that he once made a bird out of wood and flew in the sky for three days and nights without coming down. But even such a master sometimes has wrong ideas.

Luban recruited many apprentices. In order to maintain the reputation of Banmen, he regularly checks and eliminates some people. One of them is Mount Tai, which looks silly. After coming for a while, his skills didn't improve, so Lu Ban kicked him out of the house.

A few years later, Lu Ban wandered in the street and suddenly found many well-made furniture, which was very popular with people.