Lewis responded to Barfield’s critique with ready agreement: “The devil of it is, you’re largely right. Why can I never say anything once?” He continues, tongue in cheek, piling up illustrations of the very flaw he has just been accused of: “‘Two and two make four. These pairs, in union, generate a quaternity, and the duplication of duplicates leaves us one short of five.’ Well, all’s one.” Lewis continues in lighthearted self-mockery, using this same deliberate repetition in two other places in this letter. Clearly, he’s gotten the message. His reply to Barfield is a classic Lewissian retort,
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