The Heretic and the Courtier (Spinoza v Leibniz)
The Infidel and the Professor (Adam Smith v David Hume)
Are there other such good books about important conversations/sparrings?
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Nabokov and Wilson used to be very good friends and then had a large and public falling out later in life that was a "big deal" as far as men of letters in the 60's go. It's their collected correspondence over ~30 years.
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