Everyone has heard people quarreling. Sometimes it sounds funny and sometimes it sounds merely unpleasant; but however it sounds, I believe we can learn something very important from listening to the kind of things they say. They say things like this: “How’d you like it if anyone did the same to you?”—”That’s my seat, I was there first”—”Leave him alone, he isn’t doing you any harm”— “Why should you shove in first?”—”Give me a bit of your orange, I gave you a bit of mine”—” Come on, you promised.” People say things like that every day, educated people as well as uneducated, and children as well as grown-ups.