Yours, Jack contains a letter where Lewis discusses his views of Europe’s apostasy from the faith. The letter is from Sept. 15, 1953. His thoughts are worth reading:
“But…certainly I feel that very grave dangers hang over us. This results from the apostasy of the great part of Europe from the Christian faith. Hence a worse state than the one we were in before we received the Faith. For no one returns from Christianity to the same state he was in before Christianity but into a worse state: the difference between a pagan and an apostate is the difference between an unmarried woman and an adulteress. For faith perfects nature but faith lost corrupts nature. Therefore many men of our time have lost not only the supernatural light but also the natural light which pagans possessed.
“But God, who is the God of mercies, even now has not altogether cast off the human race….We must not despair. And (among us) a not inconsiderable number are now returning to the Faith.
“So much for the present situation. About remedies to the question is more difficult. For my part I believe we ought to work not only at spreading the Gospel (that certainly) but also at a certain preparation for the Gospel. It is necessary to recall many to the law of nature before we talk about God. For Christ promises forgiveness of sins: but what is that to those who, since they do not know the law of nature, do not know that they have sinned?…Moral relativity is the enemy we have to overcome before we tackle Atheism. I would almost dare to say ‘First let us make the younger generation good pagans and afterwards let us make them Christians.’” (219)