First, I think that it's important to be clear that the natural/unnatural, necessary/unnecessary distinctions refer to desires, not pleasures. All pleasures are good, but some lead to more pain than pleasure. With that in mind, I see natural desires as those that will bring me a balance of pleasure when I successfully pursue them. Unnatural desires are those that bring me more overall pain than pleasure. Dialing in tighter to necessary and unnecessary desires, all desires that I consider unnatur…