If you know the idiom story, say it in 50 words.

The absurd conceit of Yelang Wang-indulge in conceit

During the Han dynasty, there were some small countries attached to the Han dynasty in southwest China, one of which was called Yelang.

Yelang is an independent country, but its area is very small, only equivalent to the size of a county in the Western Han Dynasty. Moreover, the population there is sparse and the land is barren. But their king has never been to other places, so he always thinks that his country is very big, and his gay country is the only big country in the world.

Once, an envoy of the Han Dynasty went to Yelang for an inspection, and the king of Yelang Kingdom actually asked, "Which is bigger, the Han Dynasty or our Yelang Kingdom?" Faced with such an ignorant and arrogant person, the messenger of the Han Dynasty didn't know how to answer at the moment.

This idiom is used to describe that you have little knowledge and think you are great.

Make sentences:

My father often said to me, "I don't have any skills, and I often feel very arrogant and think highly of myself." Such a person is the most hopeless. "