written quality works?
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Persig's Zen and the Art of Motorcycle Maintenance is a "modern" (it's actually getting pretty old now too) transendental classic.
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Depends on what you are looking for, but have you gone through some of the foundational stuff like Kant or some of the Vedic texts?
Try Ken Wilbur and Deepak Chapra. Ther are others, I just can't bring them to mind because I never read them.
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