When John Lewis, an American congressman and civil rights leader, died in 2020, people from many political persuasions mourned. In 1965, Lewis marched with Martin Luther King, Jr. to secure voting rights for black citizens. During the march, Lewis suffered a cracked skull, causing scars he carried the rest of his life. “When you see something that is not right, not just, not fair,” Lewis said, “you have a moral obligation to say something. To do something.” He also said: “Never, ever, be afraid to make some noise and get in good, necessary trouble.”

Lewis learned early that doing what was…