[xorbie]

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I mean differences that relate to their mroal nature.

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What is a moral nature and what is the specific difference in play here and how does it apply to the matter at hand?

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{Rest of your post}

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We are probably using a different definition of preference. I tried to give examples that covered different definitions, but that doesn't seem to have helped.

By preferences, do you mean preferred actions, or preferred end results (or something else)?