Protagonist discussed his Zettelkasten the novel "Lila: An Inquiry into Morals" by Robert M. Pirsig
Mostly known for "Zen and the Art of Motorcycle Maintenance", Pirsig's second novel "Lila: An Inquiry into Morals" feature the same style of fictionalized philosophical discussions on Quality and life, as well as two scenes where the protagonist discusses what is in all aspects a Zettelkasten. These trays of "slips" have grown organically over the past four years and form the basis of a book that doesn't really have a fixed organization, but make up its own "slip-world".
Long paste was too long so it's here: https://pastebin.com/YFct5hb3
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