C.S. Lewis is considered by me and many others to be a diamond of the first water among all the Christian apologists of the twentieth century. He was British and started out an atheist becoming a professing Christian at Cambridge University while participating in debates concerning religion. After his conversion he wrote, spoke and participated in debates in favor of Christian faith. These are called in early theology apologias and thence apologetics; meaning a defense of the faith. His arguments are cogent, vivid, sometimes didactic and always entertaining with no vituperation toward non-believers.
In his writings he took the human perspective, G-d’s perspective, and the devil’s position at various literary sojourns.
His language is simple straight forward, easily understood and persuasive, though it is a bit to British perhaps for some. Entertaining and often has paraprosdokian twists and turns that can be amusing or startling to the reader. Most delightful and intriguing!
His theology is of “the every man’s version” in its deceptive simplicity, while carrying on a more elaborate and deeper apologia for others —communication within the communication.
I recommend to any thinker or word tinkerer that you read every single word this man has written. By the way, the above title is about man’s fall from grace of Adam and the emergence of our lower—sin— natures.