I am suffering incessant temptations to uncharitable thoughts at present; one of those black moods in which nearly all one's friends seem to be selfish or even false. And how terrible that there should be even a kind of pleasure in thinking evil.
C. S. Lewis (2009). “The Collected Letters of C.S. Lewis, Volume 3: Narnia, Cambridge, and Joy, 1950 - 1963”, p.6, Harper Collins
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