He who hangs around with wolves, learns to howl
Idiomatic translations of "He who hangs around with ..."
Meanings of "He who hangs around with ..."
You become that from which you have lived. If you lived amongst bad men (character and traits) you are thought to become bad. If you grow up amongst good men you are thought that you will be good. You learn what you are exposed to and accept it as the norm(al).