‘How can you be a Christian when you are such an [expletive]?’’ someone supposedly asked Evelyn Waugh after the British writer converted to Roman Catholicism in 1930. According to legend, Waugh answered, “Just think how much worse an [expletive] I would be if I were not a Christian.’’
Walter Sinnott-Armstrong, a professor of philosophy at Dartmouth, quotes the above exchange in “Morality Without God’’ to argue that religion can be a force for good, even for flawed believers, and to make the same case about the positive power of atheism. If we lived in a rational world, a reviewer could pan this book as a needless waste of ink. That atheists can be moral without resorting to belief in God, and that such belief is hardly insurance against sinfulness, is supported not only by many people’s everyday experience but by longstanding intellectual tradition. The American thinker and humanist Robert Ingersoll became one of the top orators of the Gilded Age with his reasoned defense of agnosticism.