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Extracts from Zen and the Art of Motorcycle Maintenance: an enquiry into values by Robert Pirsig with permission from The Random House Group and HarperCollins Publishers.
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Figures 4.1, 4.2, 4.3, 4.4, 4.5, 4.6, 4.7 from The 7 Habits of Highly Effective People, Simon & Schuster (Covey, Stephen R. 2004) with the permission of FranklinCovey Company.
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