im Rohn’s widely quoted line is: “You are the average of the five people you spend the most time with.” James Altucher advises young writers and entrepreneurs to find their “scene”—a group of peers who push them to be better. Your father might have given you a warning when he saw you spending time with some bad kids: “Remember, you become like your friends.” One of Goethe’s maxims captures it better: “Tell me with whom you consort and I will tell you who you are.”

