He Zhizhang had a distinguished reputation. When he retired and returned to his hometown, Emperor Ming of the Tang Dynasty praised him for relying on him. When he was about to leave, he shed tears. The emperor asked He Zhizhang what he wanted. He Zhizhang said: I have a boy who has not yet been named, and I hope your majesty will reward him. Name, use this to get the glory of my return home. The emperor said: "There is no principle in life that exceeds integrity. Fu means trust. Aiqing's son should be named Fu." He Zhizhang bowed twice to accept the order. It took him a long time to realize this and said, "Why is the emperor joking with me?" The word "Fu" means there is a child under the claw. Shouldn't I call my son "paw"? ”