Speaking of C.S. Lewis, although his theology was in places deeply problematic, he was nevertheless quite brilliant. His essay, On the Reading of Old Books, would, if taken to heart by western believers, do much to counter the church growth Innovation Cult that blights so much of today’s visible church.
Originally written as an introduction to an English translation of Athanasius’ On the Incarnation, Lewis’ short essay has been much reproduced. It is worth your time, and you can read it here.