“Admiration is seen as a noble sentiment – we admire people for admiring others, detecting, in their admiration, a suggestion of taste and humility. Envy, by contrast, is thought to be inherently bad … Is that really the case? Or can something frustrating and painful lead, almost in spite of itself, to positive ends – to even better ends, perhaps, than its more admired counterpart? Not all envy, we are learning, is created equal.”