Of all philosophical positions on moral truth, moral realism is probably the most intuitive. It starts by answering two questions with “yes”: Can moral claims, i.e. propositions employing moral concepts, be true? And if so, are at least some moral claims actually true?
But that is not all it says – moral realism is very specific as to
“why propositions employing moral concepts may have truth
values”Korsgaard (2003), 302
. Its answer to that question is also the reason why it is
so intuitive: it naturally extends our intuitive realist semantics from
the factual to the moral domain. Intuitively, the claim that
the cat is on the mat is made true by the fact that the cat
indeed is on the mat. This fact and the entities referred to by “cat”
and “mat” are independent of us and our concepts of cats and mats. In
the same way, moral realism contends, the claim that we have an
obligation to treat animals well is made true by the fact that
we indeed have an obligation to treat animals well. This fact and the
normative entity referred to by “obligation” are independent of us and
our concept of an obligation.
Thus, according to moral realism, “propositions employing moral
concepts may have truth values because moral concepts describe or refer
to normative entities or facts that exist independently of those
concepts themselves.”ibid., 302
In other words, moral realism holds that “moral claims do
purport to report facts and are true if they get the facts right.”Sayre-McCord (2017)
Apart from its intuitive appeal, moral realism – if correct – may
offer another huge advantage: It seems to provide a formidable argument
against moral skepticism, i.e. the view that “nobody is ever justified
in holding any substantive moral belief”Sinnott-Armstrong (2015)
or making a moral claim, let alone knows that it is true.
If someone challenges us why we are justified in making such a claim or
how it can be true, as moral realists we can easily answer: because it
describes a fact. According to moral realism, there is no fundamental
difference between empirical and moral claims, no special dubiousness
about moral as opposed to empirical truths: in both cases, claims are
true if they get the facts right.
But that, of course, opens up a lot of other questions: How are we
supposed to find out if a moral claim is true – if what it
purports to report is indeed the case? Most of the time, we know how to
check empirical facts, e.g. verify whether the cat actually is on the
mat. But how are we to check moral facts, e.g. verify whether
we actually have an obligation to treat animals well? When checking for
cats on mats, we might rely on our visual perception – but do we also
have a moral perception, a moral sense we somehow grasp moral facts
with?Since Mackie (1977), such questions that invoke the
dubious epistemological and (see below) metaphysical status of purported
moral facts are known as the “argument from queerness”.
And if that was the case, what exactly would we grasp with it? What
kind of thing is a moral fact or a normative entity? In which
part of the world do they reside? Are they part of the natural order –
and if so, how can their normativity transcend mere utility or
convention? If not, doesn’t that mean we have to give up even the most
basic philosophical naturalism?When we put it this way, it’s easy to see that the
issue for the moral realist constitutes what Huw Price calls a
“placement problem” (Price 2013, 5).
As these questions show, moral realism either collapses into a weak naturalist understanding of normativity or depends on strong, probably non-naturalist epistemological and metaphysical assumptions. This dilemma is especially problematic for arguing against the moral skeptic.
On the one hand, a naturalist understanding of normativity as based
on utility or convention is of limited use against moral skepticism: It
doesn’t provide an argument for the truth or truth-aptness of
“categorical or absolute moral beliefs”, even if it allows for “weaker
kinds of moral beliefs”Sinnott-Armstrong (2015)
to be true.
On the other hand, strong epistemological and metaphysical
assumptions make moral realism even less useful against the moral
skeptic, especially if she is a naturalist: Why should she overturn her
metaphysically modest position in favour of metaphysically much more
ambitious and thus – in her view – dubious speculations?When spelled out in more detail, this argument will
look a lot like a reverse version of G. E. Moore’s famous argument against
skepticism about the external world (Moore 1959, 222).
Therefore, in both versions, moral realism is a blunt
knife against moral skepticism.
If we reject both naturalist and non-naturalist moral realism, aren’t
we then left without moral truth? Not necessarily. What I called our
intuitive realist semantics is based on a “representationalist
assumption”: the view that “linguistic items … ‘stand for’ or
‘represent’ something nonlinguistic”Price (2013), 9
– in other words, “that it is the function of all of our
concepts … to describe reality”Korsgaard (2003), 309
. This is why the moral realist needs non-linguistic
normative entities as parts of reality: They are what moral concepts
represent.
But this paradigm is not without alternatives: Instead of taking the alleged representational function of linguistic items as the foundation of meaning, we can start with their use. This account of language, which goes back to Wittgenstein and Dewey, can then be spelled out for moral concepts and claims in different ways:
We can either take moral claims and construe them as “moves
in a linguistic game of ‘giving and asking for reasons’”Price (2013), 32
. On this inferentialist account, the meaning of
moral claims and, derivatively, concepts, consists in their position in
our web of reasons. It follows naturally that we are justified in making
a moral claim if we have the reasons to back it up. Habermas’s
discourse ethics and its criteria of moral justification, e.g., can
be read as a pragmatist moral theory along these lines.
Or we can understand moral concepts as “the names of the
solutions of problems”Korsgaard (2003), 322
. On this constructivist account, practical
philosophy works out solutions to practical problems by “constructing an
account of the problem reflected in the concept that will point the way
to a conception that solves the problem.”ibid., 322
Rawls’s theory
justice is an example of how we construct a solution – is his case,
justice as fairness – for a practical problem – in his case, how to
organise social cooperation. Following this line of thought, we are
justified in making a moral claim if the conception it expresses solves
the problem we face.
On both accounts, we get non-subjective correctness criteria for categorical moral claims – without dubious metaphysical or epistemological assumptions. According to these accounts, moral claims are not true or justified independently of moral agents and agency – on the contrary, even their meaning is inextricably linked to them. But they are true or at least justified independently from any subjective desire or inclination, by an intersubjectively realised rationality.
This is, I think, as close as we can get to moral truth. Both
accounts reconcile a naturalist worldview with our realist intuitions
about moral claims: We can “hope to agree with everyday moral claims,
without having to take anything back”. And we can “argue that the
attempt to raise further issues – Are there really any such
facts? – rests on a mistake about language.“Price (2013), 29
References
- Korsgaard, C. M. (2003), ‘Realism and Constructivism in Twentieth-Century Moral Philosophy’, in: Korsgaard, C. M. (2008), The Constitution of Agency. Essays on Practical Reason and Moral Psychology, 302–326
- Mackie, J. L. (1977), Ethics: Inventing Right and Wrong
- Moore, G. E. (1959), ‘Four Forms of Scepticism’, in: Moore, G. E. (1959), Philosophical Papers, 220-222
- Price, H. (2013), Expressivism, Pragmatism and Representationalism
- Sayre-McCord, G. (2017), ‘Moral Realism’, in: Zalta, E. N. (ed.), The Stanford Encyclopedia of Philosophy (Fall 2017 Edition)
- Sinnott-Armstrong, W. (2015), ‘Moral Skepticism’, in: Zalta, E. N. (ed.), The Stanford Encyclopedia of Philosophy (Fall 2015 Edition)
Acknowledgements
I am grateful to Matthew Braham and Florian Augustin for comments on drafts of this essay.