EUROPEANS HAVE BEEN disdainful of Americans’ enthusiasm for work. “Americans live to work,” they say, “while Europeans work to live.” Many Americans have agreed, me among them, and felt sorry for Europeans. Yes, you can overdo it. There is more to life than work, and a life without ample space for family and friends is incomplete. But this much should not be controversial: Vocation—one’s calling in life—plays a large role in defining the meaning of that life.