Oprah Winfrey is a one-woman crusade against “luck.” “Nothing about my life is lucky,” she has argued. “Nothing. A lot of grace, a lot of blessings, a lot of divine order, but I don’t believe in luck. For me, luck is preparation meeting the moment of opportunity.” Luck implies that there might have been a moment when, God forbid, good fortune might have gone next door. Luck might mean we cannot say, unbowed, with the poet William Ernest Henley: “I am the master of my fate. / I am the captain of my soul.”