What does it mean that all cursive kings laugh at it?

Prime Minister Zhang studied well and didn't do anything serious. At that time, everyone laughed at it. The prime minister is calm. A word a day, a pen, a book and a paper dragon snake. Let my nephew record it. My nephew turned a deaf ear when the waves were dangerous. He took the book and asked, "What is this word?" The prime minister has been familiar with it for a long time, and he doesn't know it himself. He criticized his nephew and said, "If you hadn't asked earlier, I would have forgotten."

Prime Minister Zhang likes calligraphy, but he doesn't study hard. At that time, people laughed at him, and the prime minister was very calm about it. Once, when he got a good sentence, he picked up a pen and wrote it down quickly, and the whole paper danced. He asked his nephew to copy it down and went to that messy place. The nephew couldn't understand what he wrote, so he took a piece of paper and asked him, "What is this word?" The prime minister looked at it carefully for a long time, but he didn't recognize it himself, so he blamed his nephew: "Why didn't you ask earlier? I forgot what I wrote. "

Everyone laughed at pronouns, referring to the prime minister Zhang.