“I have a natural disposition toward shallowness.” That’s a curious line from someone engaged in an exhaustive quest to plumb the depths of human character in a best-selling book, but it sets a tone for the main themes circulating in New York Times columnist and PBS commentator David Brooks’s most recent work, The Road to Character. Brooks’s self-effacement (“I’m paid to be a narcissistic blowhard, to volley my opinions, to appear more confident about them than I really am…”) mirrors much of what follows as he takes us on brief biographical tours of various figures he considers moral exemplars through…