ModernAnglican

C.S. Lewis

1898 – 1963

Oxford and Cambridge literary scholar whose conversion from atheism led to some of the 20th century’s most compelling Christian apologetics. Mere Christianity, The Screwtape Letters, and the Chronicles of Narnia continue to reach millions.

BornBelfast, Ireland

DiedOxford, England

TraditionAnglican

EraModern

From Belfast to Atheism

Clive Staples Lewis grew up in a bookish Belfast household. The death of his mother when he was nine shattered his childhood faith. Through his school years and service in the trenches of World War I — where he was wounded at the Battle of Arras — he became a confirmed atheist and materialist. He arrived at Oxford as a young don convinced that Christianity was “one mythology among many.” Lewis’s atheism was not casual but deeply felt. He had experienced the apparent silence of God in the face of his mother’s death, and the horrors of trench warfare only confirmed his conviction that the universe was indifferent to human suffering. His intellectual circle at Oxford was largely secular, and the dominant philosophical mood was one of confident materialism. Yet Lewis was haunted by what he called “Joy” — an intense, fleeting longing triggered by beauty, myth, or the natural world — a longing that seemed to point beyond the material world to something his atheism could not account for. This experience of “Joy” — what Blaise Pascal might have called the “God-shaped vacuum” in the human heart — became the thread that would eventually pull Lewis out of atheism. He would later argue in Surprised by Joy and in Mere Christianity that this universal human longing for something beyond the world is itself evidence for the existence of that something. The argument anticipated, in popular form, some of the themes explored in The Problem of Meaning.

The Most Reluctant Convert

Lewis’s journey back to faith was slow and intellectual. Conversations with J.R.R. Tolkien and Hugo Dyson showed him that the Christian story might be “a true myth” — a myth that really happened. In 1929, he knelt and admitted that God was God, calling himself “perhaps the most dejected and reluctant convert in all England.” Two years later, during a motorcycle ride to Whipsnade Zoo, he moved from theism to specifically Christian belief. He described the experience not as emotional ecstasy but as “when a man, after long sleep, still lying motionless in bed, becomes aware that he is now awake.” The role of G.K. Chesterton in Lewis’s conversion is significant. Lewis later testified that Chesterton’s The Everlasting Man was one of the books that most shaped his thinking — particularly its argument that the incarnation is not just one myth among many but the myth that became fact, the story that all other stories dimly foreshadow. This idea, reinforced by Tolkien’s similar argument during their famous late-night conversation on Addison’s Walk, was decisive. Lewis came to see Christianity not as the denial of mythology but as its fulfillment. Lewis’s conversion also owed much to his reading of the Church Fathers. He wrote the introduction to a modern translation of Athanasius’s On the Incarnation, and his theology was deeply shaped by the patristic emphasis on the incarnation as the restoration of human nature. His Christianity was not narrowly Protestant or Catholic but “mere” — centered on the core claims that Christians of all traditions share. This commitment to “mere Christianity” would make him a bridge figure between traditions, beloved by Catholics, Protestants, and Eastern Orthodox Christians alike.

Wartime Broadcaster & Apologist

During World War II, the BBC invited Lewis to give a series of radio talks explaining the Christian faith to a war-weary public. These talks, later published as Mere Christianity, made him the most famous Christian voice in the English-speaking world. He argued for Christianity not from Scripture or tradition but from reason, moral experience, and desire — meeting skeptics on their own ground. The Screwtape Letters, a satirical novel written from a senior demon’s perspective, became a bestseller and remains one of the most inventive works of Christian imagination. Lewis’s apologetic method was distinctive in its combination of rigorous logic and vivid imagination. His “trilemma” argument — that Jesus must be either a liar, a lunatic, or the Lord — has been endlessly debated but remains one of the most influential arguments in popular Christian thought. His moral argument for the existence of God, developed in the early chapters of Mere Christianity, draws on the universal human experience of moral obligation to argue for a moral lawgiver. Timothy Keller, in The Reason for God, acknowledged Lewis as the single greatest influence on his own apologetic approach. The Screwtape Letters revealed Lewis’s extraordinary ability to see familiar things from an unfamiliar angle. By narrating the story from the devil’s perspective, he illuminated the subtle ways in which evil works — through distraction, self-righteousness, and comfortable conformity rather than through dramatic temptation. The book’s insights into human psychology remain startlingly accurate, and its vision of evil as parasitic on good — as incapable of creating anything but only of corrupting what God has made — draws on the tradition of Augustine of Hippo’s theology of evil as privation.

Narnia, Loss & Legacy

Between 1950 and 1956, Lewis published the seven Chronicles of Narnia, which have sold over 100 million copies and been translated into 47 languages. His late marriage to Joy Davidman, her death from cancer, and his searingly honest account of grief in A Grief Observed revealed a faith tested to its limits. Lewis died on November 22, 1963 — the same day as John F. Kennedy and Aldous Huxley. His books continue to sell over two million copies a year, and his influence on Christian apologetics, children’s literature, and literary criticism remains immense. A Grief Observed is one of the most remarkable documents of faith in crisis ever written. Lewis, the great apologist who had written so confidently about the problem of pain, found his own arguments insufficient in the face of his wife’s death. “You never know how much you really believe anything,” he wrote, “until its truth or falsehood becomes a matter of life and death to you.” The book’s honesty about doubt, anger at God, and the eventual return to faith gives it an authenticity that his earlier, more confident apologetics sometimes lack. It stands alongside the Psalms of lament and the Book of Job as one of the great meditations on suffering in the Judeo-Christian tradition. Lewis’s influence on subsequent Christian thinkers is pervasive. Timothy Keller has called him the most important Christian apologist of the twentieth century. N.T. Wright has drawn on Lewis’s work on the relationship between myth and history. Dallas Willard shared Lewis’s conviction that Christianity is not merely a set of beliefs but a way of living in reality. The Lewis-Tolkien friendship — two great literary imaginations sharpening each other in a dingy Oxford pub — remains one of the most fruitful intellectual partnerships in modern history.

Lewis and the Anglican Tradition

Lewis’s position within the Anglican Church shaped his distinctive approach to Christianity. Anglicanism’s “middle way” between Catholicism and Protestantism gave Lewis the freedom to draw on the full range of Christian tradition without being constrained by any single confessional framework. He could cite Thomas Aquinas and Martin Luther with equal appreciation, and he found in the Anglican tradition’s characteristic blend of reason, Scripture, and tradition a natural home for his capacious intellect. Yet Lewis was also critical of the liberal theology that was increasingly influential in the Anglican Church of his day. He had no patience for what he called “Christianity-and-water” — a diluted version of the faith that retained the ethical teachings of Jesus while jettisoning the supernatural claims. In this, he stood with Karl Barth against the liberal theological tradition, though Lewis’s arguments were less technical and more accessible than Barth’s. His insistence that Christianity stands or falls on the historicity of the resurrection aligns him with N.T. Wright’s later work on the same subject. Pascal’s Wager Revisited explores a theme that Lewis would have recognized immediately: the relationship between faith and reason, between the evidence that can be marshaled for Christianity and the personal commitment that ultimately makes it real. Lewis, like Blaise Pascal before him, understood that faith is not a matter of dispassionate evaluation but of the whole person — intellect, imagination, will, and desire — responding to a reality that is both rationally compelling and personally transformative.