Human beings have evolved similar physical attributes over time. Though there

Human beings have evolved similar physical attributes over time. Though there

Human beings have evolved similar physical attributes over time. Though there is some genetic variation among individuals, we share many traits. But isn't it also possible that, as a result of our common evolutionary heritage, we share similar emotional and moral traits as well? If we all have basically similar emotional machinery, why couldn't we appeal to the general constellation of desires that most of us share, and use them to construct a universal ethics? If the good is what makes us happy, and happiness is the fulfillment of various desires, and if humans have similar desires because we share evolved mental traits, then why couldn't an appeal to those traits in the search for moral agreement? Just as medical experts can give general advice about physical health because most humans share similar physical bodies, why can't psychologists and ethicists give general advice about morality based upon our shared mental traits?

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