 The second answer is Aristotelian. The idea here is to reject a subjectivism about the good, holding that what makes it true that something is good is not that it stands in some relation to desire but rather that it is somehow perfective or completing of a being, where what is perfective or completing of a being depends on that being’s nature. So what is good for an oak is what is completing or perfective of the oak, and this depends on the kind of thing that an oak is by nature; and what is good for a dog is what is completing or perfective of the dog, and this depends on the kind of thing that a dog is by nature; and what is good for a human depends on what is completing or perfective of a human, and this depends on the kind of thing a human is by nature. So the fact of variability of desire is not on its own enough to cast doubt on the natural law universal goods thesis: as the good is not defined fundamentally by reference to desire, the fact of variation in desire is not enough to raise questions about universal goods. This is the view affirmed by Aquinas, and the majority of adherents to the natural law tradition.