诸葛亮 served him loyally, yet after Zhuge's death Shu surrendered to Wei in 263, hence
扶不起的阿斗 "an A Dou who can't be propped up" for someone no help can save. Taken to the Wei court and asked whether he missed Shu, he said he was too happy there to miss it, the origin of
乐不思蜀.