Every day around the globe there are billions of acts of kindness, courage, generosity, and grace, but we rarely get to hear much about them. It's easier to write about the evil in the world than about the good. Writers who focus on violence, greed, ugliness, and hypocrisy can appear more sophisticated, more intelligent, more mature, more aware of the world's true nature. Roland Merullo recognizes these challenges to humankind as clearly as anyone,...