“I believe in Christianity as I believe that the sun has risen: not only because I see it, but because by it I see everything else.”
“To be a Christian means to forgive the inexcusable because God has forgiven the inexcusable in you.”
“A man can no more diminish God's glory by refusing to worship Him than a lunatic can put out the sun by scribbling the word 'darkness' on the walls of his cell.” (from "The Problem of Pain")
The Four Loves by 
The Great Divorce by 
Reflections on the Psalms by 
