married couples, he also stressed that "the sins of the flesh" were far more venial than "the pleasures of power, of hatred." Unhke some fundamentalists, he emphasized that Christians could learn from other religions, and Jesus could save "those who have not explicitly accepted Him in this life.'
Lewis's Christian apologetics were of two kinds. His essays, among them Mere Christianity (1952) and The Problem of Pain (1940), were a systematic guide to Christian faith and...