A Dialogue on Metaethics, Moral Realism and Platonism from an Objectivist Perspective

Plato points upward in Raphael's fresco, "The School of Athens." Plato was a Platonic "moral realist." He believed that a "Form of The Good" resided in extra-mental reality.

Plato in The School of Athens

What is the basis for an objective morality in under 1000 words? Where does mainstream Moral Realism go wrong? What error did Plato make that has negatively affected philosophers’ ethical assumptions even into the 21st Century? What is the meaning of modern, moral “error theory?”

If you are interested in any of these questions, I think you’ll want to see the answers given in the dialogue contained in this post.

First, a bit of context: I posted this article on the philosophy section of reddit: Answering Sam Harris’s “Moral Landscape Challenge”. The first comment below is responding to and quoting that posted article. I respond to that comment, and another poster responds to me, starting the dialogue. I am “Sword_of_Apollo” in this dialogue:


Some of these facts may be apparent, animals certainly seem to prefer warm, comfy shelter and food to the cold, and starvation, but others seem to be fairly dramatic assertions, that would be much more convincing with argumentation.

For instance

“The basic problem with all variants of utilitarianism, including Harris’s, is that there is no reason to act for the well-being of other conscious creatures, apart from how doing so redounds on one’s own well-being.”

This is a bold assertion. I don’t see this as being obvious in the slightest. Indeed, I’d say there’s no reason to only value my own well-being, when I have every reason to believe that I’m the same sort of being as other humans*. If my well-being is important, then why shouldn’t their’s be as well?

*also, don’t animals deserve moral consideration, at least to some degree? I mean, you don’t have to be vegan or whatever, but kicking a puppy doesn’t really seem morally neutral.

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