 For Kant, an appendectomy isn’t partial murder, but there is something wrong with haircuts for paychecks. It is hard to see this as anything but natural teleology: it is not up to you what your organs are meant to do, and you may not make unnatural changes to your body except to correct for defects – a version of “your body is a temple,” where the holiness comes from the value of being a person: “disposing of oneself as a mere means to some discretionary end is debasing humanity in one’s person (homo noumenon), to which the human being (homo phaenomenon) was nevertheless entrusted for preservation” (MM 6:423). Here Kant sounds less like an Enlightenment thinker and more like a natural lawyer (see, e.g., the discussion of self-love and suicide in St. Thomas Aquinas’s Summa Theologica, part II, Q64, A5, as cited in Cholbi 2017, sec. 2.2).