He was so brilliant, and kind of unrecognized, except for the Narnia Chronicles, but most people never notice the author as they read to their kids at bedtime. I had a work-related professional connection to his works, which is the only reason I recognize fake quotes. If you're spiritual, and especially Christian, "Mere Christianity" is a must. There's one brilliant conclusion in that book, essentially challenging people who consider Christ a good man, or a prophet, not the son of God. I won't go into it here, but it's worth reading. I'm not Christian, but have a soft spot for Lewis, who was also pals with Carl Jung. I'm into the meaning of dreams, so I can get pretty excited by all the revelations in these writings.
I know, TMI, right? It just happened that you and I intersected here, but we both learned something new, which is what living is about.