In the early hours of 21 September 85 years ago, C.S. Lewis and J.R.R. Tolkien were debating the coherence of Christianity in one of the foundational moments that led Lewis to become a Christian.
Lewis, an Oxford professor and author, went on to become one of the great bastions of 20th century Christianity against a growing tide of atheist philosophy. As well as the Narnia series he went on to write and lecture in defence of faith. His most famous apologetic, Mere Christianity, is still widely read today.
On the anniversary of this significant date, here are 10 quotes from Lewis on the case for Christianity.