The following is an argument David Baggett developed, which argues for the existence of a perfectly moral person. I used this in the VT debate on the existence of God. (I highly recommend Baggett’s book co-authored with Jerry Walls Good God: The Theistic Foundations of Morality.) This version of the moral argument is an abductive version. I believe this argument, when used in an abductive form, is the strongest form of the argument. You’ll usually see it in a deductive form, a la William Lane Craig. I believe this argument is better and I’d like to see it used more often. (See below for my method behind abduction.)
The advantage of this argument is that nature is included in the argument for the morally perfect person. Usually it is depicted as nature vs. God (or a morally perfect person). That argument, I believe, gives too much to the naturalist. Here’s the argument:
- There are objective axiological/moral facts that obtain.
- Either the world alone or the world and a perfectly moral person best explain these facts.
- It is the case that the world and a perfectly moral person best explain these facts.
- Therefore, the world and a perfectly moral person best explain these facts.
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