"It is a very interesting thing indeed to ask myself certain questions", reflected H.G. Wells in 1937, "How did I come to know what I know about the world and myself? What ought I to know? What would I like to know that I don't know? If I want to know about this or that, where can I get the clearest, best and latest information? And where did these other people about me get their ideas about things? Which are sometimes so different from mine. Why do we differ so widely?"1 Questions whose
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