Moral philosophy is an infamous mess. However, this mess, which moral philosophers have inadvertently foisted upon us, may in the end do us a favor: by trying in vain to come up with a coherent and convincing system of morality moral philosophers may have shown that there isn’t in fact something called morality.
But let’s take a few steps back first. Why is moral philosophy a mess? After 2000+ years of trying, not even the brightest minds have produced a morality that’s the least bit convincing. There isn’t even a shred of promise that something convincing is somewhere around some distant corner. For example, your theory might require a bit of rethinking if it states that to act morally you have to
- Tell an inquiring murderer the whereabouts of your targeted friend
- Engage in infanticide
- Prefer a society with billions of people living only a marginally worthwhile life to a small society of very happy people
- Harvest the organs of a perfectly healthy individual in order to save 5 very ill and possible terminal patients
- Be as greedy as you can be so as to make tons of money that you can then donate to some hypothetical other people who I suppose shouldn’t follow the rule to be greedy
- Engage in mutually advantageous exploitation
However, “rethinking” won’t do the job. Moral philosophy has been “rethinking” for ages, and the only thing to show for it are increasingly exotic and outrageous moral systems that refute one another and that can never and shouldn’t ever be the guide to anyone’s daily actions. You have very imaginative constructs like negative utilitarianism or esoteric consequentialism that have had about as much traction as a spider in a bathtub. Or you have hybrid systems such as rule utilitarianism, threshold deontology or luck egalitarianism that look like desperate attempts to bridge contradicting theories and offer a unified and irrefutable system without the unsavory parts of its components. Qua traction they aren’t any better.
Of course, it’s not because a theory lacks traction that it isn’t correct. Lots of unpopular things are correct. But the general persuasional failure of moral philosophy does indicate a deeper level of failure. Maybe moral philosophy fails because it tries to find a good explanation of something that doesn’t exist. And maybe it makes the same mistake as theories about the Martian canals, Aether or other Phlogistons. (Some ominous parallels perhaps to theories about free will or the Mind).
But if there is no morality, then how do we explain the sense of morality? It’s quite common for people to have a sense of right and wrong, to have a distaste of doing wrong, to oppose wrong when they see it done, to avoid harming others etc. The failure of moral philosophy to come with a good system doesn’t change this fact and doesn’t undo the reality of this moral sense. But if it’s true that there is no morality then this moral sense is an illusion, right? Not necessarily. Moral intuitions such as “do no harm” and “do unto others as you’d have done to you” are not necessarily proof of the existence of something called “morality”. These intuitions are perhaps based on mere self-interest rather than being the result of a moral system. We follow these intuitions in our daily actions not because a system of morality (or a God for that matter) demands this of us, but because doing so furthers our interests.
For example, we have an interest in a prosperous life, but in order to have a prosperous life, we need bakers, butchers, shopkeepers and the like to be able to prosper as well. We need peace, but peace is a public good: if we have it, others have it as well, and the only way to have it for ourselves is to try to give it to others. Reciprocity also explains the intuitions against harming others. If we refrain from harming others we may expect others to reciprocate, for different reasons: those others have no reason to retaliate; they make the same calculation as we do; and there is habit-formation in rule respecting behavior. There is a whole field of game theory that is based on similar assumptions. And the scientific inquiry into human evolution also gives support, as it seems that a lot of morality has an evolutionary basis.
So we end up with “values” that are really self-interested rules which happen, by chance alone, to benefit others. And which, because of these benefits, appear to be morally inspired, altruistic and benevolent. This appearance in turn has produced a whole field of philosophy that, in my mind, mistakes the appearance for the underlying reality.
PS: how do human rights fit into this? If I were famous I would be famous for my interest in and promotion of human rights. Isn’t that a moral stance? Aren’t human rights based on a moral theory? Or aren’t they a moral theory themselves, equivalent to utilitarianism and such? Not in my understanding of human rights. Of course, if you believe that human rights are divine commands or a tool to enforce a consequentialist or deontological morality, then the possible non-existence of morality undercuts the system of human rights. But in my view human rights are tools to promote interests. (I have an older post here explaining my interest-based approach to human rights. And another one here about selfish reasons to respect human rights. A more concrete example is this post about the attractiveness of religious liberty to those who hate it, namely those of us who are most ardently religious. There is also a subset of human rights violations that is relevant in this context, namely boomerang human rights violations).
The absence of a link between human rights and morality also explains
- the existence of a right to do wrong (also here)
- the relative absence of talk about duties in human rights discourse
- and the fact that morality is a major cause of human rights violations.
More about human rights and morality here.