One snippet I liked:
One thought experiment a friend of mine proposes to his well-meaning Evangelical students when they are tempted to suppose that "we're all saying the same thing" is to cheerfully say, "Great! Then I'll see you after class! Let's go adore the Blessed Sacrament and ask the intercession of the Blessed Virgin Mary and the Supreme Pontiff John Paul the Great for the Holy Souls in Purgatory." Voila! It turns out we aren't all saying the same thing.