After Wang Anshi became prime minister, he often read poems sent from all over the country in his spare time. One day, he saw a poem written by a scholar in Guangdong: "Butterflies dance in pairs, and the trees in the cicada sing." The bright moon calls in the sky, and the yellow dog lies in his heart. " He read the first and second sentences and nodded in praise; Seeing the third and fourth sentences, I couldn't help laughing internally. Upon inquiry, it was written by a scholar who had not seen it for many years. Wang Anshi thought, how can such a confused scholar be admitted? So, he changed the last two sentences to: "The sky is bright, and the yellow dog lies in the shade.

Later, Wang Anshi failed in political reform and was forced to resign as prime minister. It's really no official, and Wang Anshi travels around the world. One day, he came to Chaozhou. In the evening, when the bright moon was in the sky and the flowers smelled fragrant, Wang Anshi went to the garden of his apartment to enjoy the moon. Not long after, an old man came and Wang Anshi invited him to enjoy the moon together. The old man told him that he had no leisure. It turns out that the old man is the gardener here, and he is here to catch yellow dog worms. This insect sleeps in the flower heart at night and wastes flowers. As the old man spoke, he caught one and showed it to Wang Anshi. That's a yellow caterpillar.

Just as Wang Anshi was looking at the yellow dog bug by moonlight, he suddenly heard a bird song in the air, which was extremely melodious. He was surprised because birds don't crow at night! The old gardener said, "This is a rare local bird. It often sings at night. When the moon is in the sky, it sings more happily, so the locals call it the bright moon bird. "

Wang Anshi felt guilty after listening to the old gardener's words. He remembered that a few years ago he changed the Poem of the Moon written by a scholar, which was a big mistake made by his ignorance. Later, Wang Anshi made a special trip to visit the scholar and apologized in person. (