Materialism and the Validity of Reasoning

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In Miracles, C.S. Lewis sets forth the following argument against materialism (that physical matter is all that exists): All possible knowledge, then, depends on the validity of reasoning.  If the feeling of certainty which we express by words like “must be” and “therefore” and “since” is a real perception of how things outside our own minds really “must” be, well and good.  But if this … Continue reading