While he was hiding to avoid the king's government, he used to go fishing. There was a time when he could not catch anything for three years. His neighbors would tell him to stop fishing, but he continued. Later, he caught a big carp and found a book on tactics in its stomach. Later he was discovered by the King of Zhou and wrote hundreds of books on plots. He lived for more than 200 years by eating several kinds of nuts. When the time came for him to be buried, his body could not be found, and instead, only 6 books were in his coffin.