Does wisdom lead to happiness? Or does happiness lead to the wisdom? Those are the questions raised by a new Richard Nisbett-led psychology study, which Robert Wright has just written about on The Atlantic. Wright’s conclusion: I’m guessing the answer is a little of both: Wisdom leads to well-being, and well-being paves the way for wisdom—and, in particular, for wise action, not just a capacity for wise reasoning. If that’s true, then you can imagine getting swept up in a virtuous circle: Acting wisely reduces conflict in your life and strengthens your social relationships, and this fosters a sense of well-being that makes it easier to act wisely, and so on. But there’s also the vicious circle scenario—a downward spiral featuring growing unhappiness, commensurately unwise action, deeper…