The quote from C.S. Lewis's "Screwtape Letters" highlights the importance of self-awareness in virtues, particularly humility. It suggests that the realization of one's own virtues can diminish their value or impact. When individuals recognize their positive traits, they may struggle to maintain the genuine essence of those virtues, as awareness can lead to pride and a sense of superiority.

This insight serves as a caution for those seeking to cultivate humility in themselves or others. It implies that fostering a humble attitude requires a degree of self-reflection that does not inflate one’s ego. The notion underscores that humility is best nurtured in a state of unawareness, allowing individuals to embody it authentically rather than as a badge of honor.