Which idiom can be used to summarize Meng Mu's three movements, and how to describe it in Saint Amethyst?

Meng Mu's "Three Movements" tells the story that Mencius' mother chose the living environment three times in order to educate Mencius to grow up. This story is also called "Meng Mu chooses neighbors" and "A loving mother chooses neighbors". Confucius said: "Benevolence is beauty. If you choose an unkind person, how can you know? " Like the story of "Meng Mu's Three Movements", this story emphasizes the importance of choosing the living environment.