Moral Philosophy as Applied Science by Ruse and Wilson

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Moral Philosophy as Applied Science by Ruse and Wilson Ruse and Wilson in "Moral Philosophy as Applied Science" give the example of brother-sister incest avoidance as being an ethical code motivated by an epigenetic rule that confers an adaptive advantage on those who avoid intercourse with their siblings. In this discussion, Ruse and Wilson argue that moral laws disallowing incest are redundant relics of mankind's evolutionary history that provide nothing to mankind but explanations of a hard-wired evolutionary trait (179). I reject this argument. While Ruse and Wilson are undoubtedly correct in believing that mankind's capacity for moral reasoning is a result of natural selection pressure and that most ancient moral laws have an evolutionary basis, I believe that describing the genesis of moral reasoning in this way provides no information about the content of our moral beliefs now. While our capacity for moral reasoning may have evolved for the purpose of informing our otherwise unjustifiable acts with a sense of objective certitude, it is not hard to imagine that this capacity, once evolved, would be capable of much more than simply rubber stamping mankind's collective genetic predisposition.

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