Two Pesky Problems in Logic that Spiritual Types (particularly liberals) Should Attend To

Two Pesky Problems in Logic that Spiritual Types (particularly liberals) Should Attend To October 20, 2008


Recently UU blogger Will Shetterly pointed readers to a fascinating quote from “Two logical fallacies that we must avoid” by Satoshi Kanazawa, reprinted from his Psychology Today blog the Scientific Fundamentalist. (So, I’m reflecting on a reflection of a reflection. Don’t you love how we really are so interdependent?)

The naturalistic fallacy, which was coined by the English philosopher George Edward Moore in the early 20th century though first identified much earlier by the Scottish philosopher David Hume, is the leap from is to ought – that is, the tendency to believe that what is natural is good; that what is, ought to be. For example, one might commit the error of the naturalist fallacy and say, “Because people are genetically different and endowed with different innate abilities and talents, they ought to be treated differently.”

The moralistic fallacy, coined by the Harvard microbiologist Bernard Davis in the 1970s, is the opposite of the naturalistic fallacy. It refers to the leap from ought to is, the claim that the way things should be is the way they are. This is the tendency to believe that what is good is natural; that what ought to be, is. For example, one might commit the error of the moralistic fallacy and say, “Because everybody ought to be treated equally, there are no innate genetic differences between people.” The science writer extraordinaire Matt Ridley calls it the reverse naturalistic fallacy.

Now these fallacies should be a concern for both spiritual liberals and conservatives, but the focus of my spirituality is at the liberal end of the spectrum. And I believe at our best we aspire to live in the world that is and to work for a world that can be. I call this “naturalistic spirituality.”

I believe Kanazawa eloquently summarizes the primary dangers facing any naturalistic spirituality, the two horns, as it were, by which, if we’re not careful, we’ll get gored. And therefore two fallacies about which religious liberals need to be particularly careful. The one error is thinking the way things are, are the way things are supposed to be. The other, of course, is confusing our ideals for what actually is.

Starting with that first point. The late Patrick Moynihan famously observed how “Everyone is entitled to his own opinion, but not his own facts.” Admittedly facts are slippery things. But, as we engage the world with both rigor and humility, I’m confident we can get a good enough sense of that “what is.”

With that what is, antinomianism, the inclination to say with “true knowledge” everything goes, is perhaps the danger for spiritual liberals. But, I’m inclined to think our greater danger is in fact that second fallacy. When we assert any vision of a better world is the only way things should turn out, we tumble headlong down some steep stairs.

It is being possessed by the demon of certainty. And the spiritual liberal can fall for that demon as easily as the spiritual conservative. We need to be very careful about confusing what we hope for with what “is.” Bad premise, bad outcome. Almost always…

My take away here is that once again we’re called to genuine humility, to a profound not-knowing. Here be magic. Here we find ourselves invited into a world of many possibilities.

And it is a glorious place.

I really believe.


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