Stephen J. DUBNER: I’d like you to stop whatever you’re doing right now. No no, I don’t mean like stop so you can give your full attention to this radio show. I mean, honestly, radio is the perfect medium for multitasking — unless maybe you’re using a chainsaw or something. What I mean is Stop. Whatever. You’re. Doing. As in, doing with your life. Maybe it’s your job. Maybe it’s a relationship that’s curdled. Maybe there’s some dream project you’ve been working on so long that you can’t even remember what got you all heated up about it in the first place. I want to encourage you to just quit. Or at least think about quitting. Why? Well, because everybody else is always saying the opposite. It’s become so ingrained that we don’t even think about it any more. You know: “a quitter never wins and a winner never quits.” You know what I think when I hear people say that? I think: Are you sure?...