What I think is true is that at a certain stage in his life, he deliberately ceased to take any interest in himself except as a kind of spiritual alumnus taking his moral finals...Self-knowledge for him had come to mean recognition of his own weakness and shortcomings and nothing more. Anything beyond that he sharply suspected, both in himself and in others, as a symptom of spiritual megalomania. At best, there was so much else, in letters and in life, that he found much more interesting than himself.
Jocelyn Gibb, Light on C. S. Lewis
cs-lewis, humility, spirituality