Mr. Hume: Tear. Down. This. Wall.
A Response to George Ellis’s Critique of My Defense of Moral Realism
This article appeared in Theology and Science in December 2017.
I am deeply appreciative that University of Cape Town professor George Ellis took the time to read carefully, think deeply, and respond thoughtfully to my Theology and Science paper “Scientific Naturalism: A Manifesto for Enlightenment Humanism” (August, 2017),1 itself an abbreviation of the full-throated defense of moral realism and moral progress that I present in my 2015 book, The Moral Arc.2 As a physicist he naturally reflects the methodologies of his field, wondering how a social scientist might “discover” moral laws in human nature as a physical scientist might discover natural laws in laboratory experiments. It’s a good question, as is his query: “Is it possible to say in some absolute sense that specific acts, such as the large scale massacres of the Holocaust, are evil in an absolute sense?”
Pace Abraham Lincoln, who famously said “If slavery is not wrong, then nothing is wrong,”3 I hereby declare in an unequivocal defense of moral realism:
If the Holocaust is not wrong, then nothing is wrong.
Since Professor Ellis is a physicist, let me approach this defense of moral realism from the perspective of a physical scientist. It is my hypothesis that in the same way that Galileo and Newton discovered physical laws and principles about the natural world that really are out there, so too have social scientists discovered moral laws and principles about human nature and society that really do exist. Just as it was inevitable that the astronomer Johannes Kepler would discover that planets have elliptical orbits—given that he was making accurate astronomical measurements, and given that planets really do travel in elliptical orbits, he could hardly have discovered anything else—scientists studying political, economic, social, and moral subjects will discover certain things that are true in these fields of inquiry. For example, that democracies are better than autocracies, that market economies are superior to command economies, that torture and the death penalty do not curb crime, that burning women as witches is a fallacious idea, that women are not too weak and emotional to run companies or countries, and, most poignantly here, that blacks do not like being enslaved and that the Jews do not want to be exterminated. Why? […]
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