"C.S." is used by this author as an acronym for, "Common Sense." Mr. Lewis’ move from atheism to Christianity is a subject he wrote much about and his missives still have the brainy and prideful (both Christian’s by mere label, and those who straightaway state God is nonexistent) in utter fluxing bedevilment. C.S. Lewis was unquestionably a brilliant thinker, prolific writer, and surrendered seeker who followed Christ and it is because of his imagination in tandem with scholastic wherewithal that firmed his convictions of Christ being God-Man.
Mr. Lewis’ uncommon ability actually tapped into the common part of human sense which was routinely abandoned by academia. Lewis' intellectual counterparts seemingly couldn't compete with his command of the King's English that he sought to keep simple. Lewis thought little of those who professed their intellectually enlightened state of mind. Such folks confused what the most callow of children could easily communicate with common words and compelling implications about God's renowned and present reality.
C.S. Lewis convinced both the agnostic and atheist that their assaultive arguments against God clearly suggested that such strongly peculiar opposition confirmed God's providential presence. As a matter of question:
‘Why, Sir, are you emotionally strained and under clear duress over an issue, called God, for which you assert does not exist? Isn’t your science and intelligence blended with your right thinking take all emotion and sharp anger out of all tête-à-tête regarding God?’
Very simply, one had not an argument against nothingness unless this nothingness was truly something over which to argue and be worth opposing. Hence, common sense made agnostics (clearly the atheists) wish such common sense didn't make such profoundly disturbing good sense. Succinctly, nothing made sense unless something made sense. Thus, a man with a lick of sense knew God made the man so he could reason rightly at all.” –Brian G. Jett