C.S. Lewis knew how deal with human pretentiousness: cut it out by the root. In Lewis’ hands our self deceptions are like some hidden terrorist cell who finds itself under the precise assault of special forces. For example, in The Problem of Pain, Lewis unearths some particularly well bunkered little wickednesses: We imply, and often believe, that habitual vices are exceptional single acts and make the opposite mistake about our virtues–like the bad tennis player who calls his normal form his “bad days” and mistakes his rare successes for his normal  Beware lest you are making use of the idea of corporate guilt to distract your attention from those hum-drum,…