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Continue to ChatThey (i. e., the Pythagoreans) did not advocate the free confrontation of conflicting points of view. Instead, like all orthodox religions, they practised a rigidity that prevented them from correcting their errors. - Carl Sagan from https://whatsmyquote.com/quote/they-i-e-the-pythagoreans-did-not-advocate-the-free-confrontation-of-conflicting-points-of-view-instead-like