Consider the following thesis that both Kantians, utilitarians and
New Natural Law thinkers will agree on:
- All facts about rightness and wrongness can be derived from
descriptive facts, facts about non-rightness value, and a small number
of fundamental abstract moral principles.
The restriction to non-rightness good and bad is to avoid triviality.
By “rightness value” here, I mean only the value that an action or
character has in virtue of its being right or wrong to the extent that
it is.
I don’t have a good definition of “abstract moral principle”, but I
want them to be highly general principles about moral agency such as
“Choose the greater over the lesser good”, “Do not will the evil”,
etc.
I think (1) is false.
Consider this:
- It is not wrong for the government to forcibly and non-punitively
take 20% of your lifetime income, but it is wrong for the government to
forcibly and non-punitively take one of your kidneys.
I don’t think we can derive (2) in accordance with the strictures in
(1). If a kidney were a lot more valuable than 20% of lifetime income,
we would have some hope of deriving (2) from descriptive facts,
non-rightness value facts, and abstract moral principles, for we might
have some abstract moral principle prohibiting the government from
forcibly and non-punitively taking something above some value. But a
kidney is not a lot more valuable than 20% of lifetime income. Indeed,
if it would cost you 20% of your lifetime income to prevent the
destruction of one of your kidneys, it need not be unreasonable for you
to refuse to pay. Indeed, it seems that either 20% of lifetime income is
incommensurable with a kidney, or in some cases it is more valuable than
a kidney.
If loss of a kidney were to impact one’s autonomy significantly more
than loss of 20% of your lifetime income, then again there would be some
hope for a derivation of (2). But whether loss of a kidney is more of an
autonomy impact than loss of 20% of income will differ from person to
person.
One might suppose that among the small number of fundamental abstract
moral principles one will have some principles about respect for bodily
integrity. I doubt it, though. Respect for bodily integrity is an
immensely complex area of ethics, and it is very unlikely that it can be
encapsulated in a small number of abstract moral principles. Respect for
bodily integrity differs in very complex ways depending on the body part
and the nature of the relationship between the agent and the
patient.
I think counterexamples to (1) can be multiplied.
I should note that the above argument fails against divine command
theories. Divine command theorists will say that about rightness and
wrongness are identified with descriptive facts about what God commands,
and these facts can be very rich and hence include enough data to
determine (2). For the argument against (1) to work, the “descriptive
facts” have to be more like the facts of natural science than like facts
about divine commands.