The most prophetic thing that Thomas Merton ever did was to say to a drugstore clerk who asked him which brand of toothpaste he preferred, “I don’t care.” Intrigued by the clerk’s response, Merton wrote, “He almost dropped dead. I was supposed to feel strongly about Colgate or Pepsodent or Crest. . . . And they all have a secret ingredient.” He concluded that “the worst thing you can do now is not care about these things.”