Robert Maynard Pirsig (September 6, 1928 – April 24, 2017) was an American writer and philosopher. He was the author of the philosophical novels Zen and the Art of Motorcycle Maintenance: An Inquiry into Values (1974) and Lila: An Inquiry into Morals (1991), and he co-authored On Quality: An Inquiry Into Excellence: Selected and Unpublished Writings (2022) along with his wife (now widow) and editor, Wendy Pirsig.

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