Desiring God’s blog has a post by John Piper comparing thoughts from C. S. Lewis and Jonathan Edwards on the subject of humility. It’s worth checking out here.
This smidgen of a quote from Lewis regarding the human propensity to self-admiration might whet your appetite to click through:
It is like fighting the hydra… There seems to be no end to it. Depth under depths of self-love and self-admiration.