Last Testament
by Benedict XVI, with Peter Seewald, Bloomsbury, £16.99

The drill instructor surveyed the new recruits. He was expected to turn this pathetic rabble into an efficient fighting force for the Führer. “Who’s holding out for longest,” he bellowed, “you or me?” There was an uncomfortable silence. Then the smallest soldier in the line – a weedy and bookish figure – stepped forward and said: “Us!”

That defiant young man became arguably the most influential Christian theologian of our age and served for eight years as the spiritual leader of a billion souls. He has never lost what he calls “the desire for contradiction”: a willingness to rebel against the dictates of the age, alone if necessary. Joseph Ratzinger contra mundum.