Want to be cunning? You might wish you were more clever, more flexible, able to cut a few corners without getting caught, to dive now and again into iniquity and surface clutching a prize. You might want to roll your eyes at those slaves of duty who play by the rules. Or you might think there's something sleazy about that stance, even if it does seem to pay off. Does that make you a chump? With pointedly mischievous prose, Don Herzog explores what's alluring and what's revolting in cunning. He...