Moral Realism and the Evolutionary Challenge

(by Joe)

Right, we're still sticking to the chimps, but this time I'm going to go out on a bit of a limb. I've been reading Primates and Philosophers as research for a paper that I'm planning to submit to Durham's Philosophical Writings, and I'd like to try and flesh out a few ideas here. Partly this is just a convenient way for me to get something solid written down, although I'd appreciate your thoughts and opinions as well.

In Primates and Philosophers (and elsewhere), Frans de Waal argues for the falsity of what he calls "veneer theory", the idea that morality is a "thin veneer" on top of an essential immoral nature. Instead, he argues, we should see morality as an essential element of human nature, something that can be explained in terms of evolution and, as such, is to some degree continuous with our ancestors and relatives (such as chimpanzees).

As Jonny discusses here, the degree to which morality is found in non-human animals is itself a contentious issue. What I'm interested in is something slightly different, namely what de Waal's argument might mean for what I'm going to call traditional moral realism. Whilst de Waal's characterisation of Veneer Theory is somewhat contentious, I think it does identify something that has traditionally been seen as an important aspect of morality: the concept of moral choice or agency. It's fairly intuitive to think that you can only be held (morally) responsible for doing something if you could have chosen to do otherwise. It hardly seems fair to blame somebody for an action that they did not consciously choose to commit. 

Both de Waal and his commentators in Primates and Philosophers seem to agree that to some extent what sets human morality apart from animal morality (supposing such a thing exists) is rationality. Whilst chimpanzees and other social animals might seem to behave altruistically, they do so because this happens to be their proximate desire (if not necessarily their long-term, evolutionary 'goal'). De Waal's proposed alternative to Veneer Theory is a naturalistic, evolutionary explanation of moral behaviour. I emphasise explanation, because that's precisely what I think it is. De Waal is able to explain how altruistic behaviour and morality more generally might have evolved, but I don't think that this is the same thing as giving an evolutionary account of moral realism. If I only behave morally because I am genetically predisposed to (under certain circumstances), then can I truly be called a moral agent?

I'm not sure. The responders to de Waal (in Primates and Philosophers) for the most part seem to think so, but I find it hard to agree. Peter Singer, for example, is comfortable with the idea that "automatic, emotional responses [...] constitute a large part of our morality" (P&P: 149). Certainly, such evolved responses might make the world a 'better' place, in the utilitarian sense of maximising well-being, but I don't think they constitute real moral agency, which is required for what I'm calling traditional moral realism. So I can't help but feel that evolutionary accounts of apparently moral behaviour tend to undermine traditional moral realism. It's not that I think such accounts are false - quite the contrary, in fact - but rather that if we are going to take them seriously, we will also need to consider their implications for moral realism.

One possibility that I've been considering is what we might call 'pragmatic moral irrealism'. Something of this kind is suggested by Tamler Sommers (2007), who gives a convincing evolutionary account of how the illusion of moral agency might arise, and why it might be beneficial for us to maintain it. I'm about to read The Myth of Morality, by Richard Joyce, which I think might express some similar thoughts. My rough plan for this paper, if I ever get round to writing it, is to demonstrate how 'traditional moral realism' is undermined by evolutionary accounts (which I take to be largely true), before sketching out a possible moral irrealism. I'd be interested to hear about anything similar or relevant to this, as well as any comments anyone has.

de Waal, F. 2006. "Morality Evolved: Primate Social Instincts, Human Morality, and the Rise and Fall of 'Veneer Theory'." In Primates and Philosophers, eds. Stephen Macedo, and Josiah Ober. Princeton University Press: Princeton.

Joyce, R. 2001. The Myth of Morality. Cambridge: Press Syndicate of the University of Cambridge.

Singer, P. 2006. "Morality, Reason and the Rights of Animals." In Primates and Philosophers, eds. Stephen Macedo, and Josiah Ober. Princeton University Press: Princeton.

Sommers, T. 2007. "The Illusion of Freedom Evolves." In Distributed Cognition and the Will, eds. Ross et al. MA: MIT Press.