On Sunday, April 27, 2014, Pope Francis will canonize John XXIII and John Paul II. These two men were very different from one another. John was an Italian pastor, bishop, and Vatican diplomat noted for his simplicity and humility. John Paul was a man of steel, fire-tried through his battles with the communist authorities in Poland. John was a historian; John Paul a philosopher. Yet both these beloved popes had something in common: they were optimists, filled with hope because of their faith in J...