From "The Analects of Confucius: Li Ren", Confucius said: "When parents are alive, do not travel far away, and you must travel well."

Translation introduction: When parents are alive, do not travel far away To study or become an official, if you have to travel far away, you must have a certain place to go. Here "square" refers to a certain place to go, a place where parents won't worry.