In 497 B.C.（the 13th year of Dinggong，Duke of the state of Lu），the state of Lu became prosperous.Qi was worried and attempted to corrupt Lu by presenting to Duke of Lu 80 beauties and 120 horses.Jihuanzi accepted the present，and both Duke of Lu and Jihuanzi became remiss in their duties.Confucius was disappointed and left Lu for Wei.