Abstract and Keywords
This article argues that the best biological explanation for the existence of altruistic behavior supports noncognitivism. In its view, evolutionary biology supports the idea that the function of moral attitudes is to create motivation for the kinds of altruistic behavior that improve social cohesion. The criterion of success of a system of moral rules is not accurate representation, but the improvement of social cohesion in ways that promote the transmission of the system itself. One might combine the view of this article, according to which moral codes have the function of improving social cohesion, with the view that moral truths are “grounded in” the tendency of a system of moral rules to improve social cohesion. The result would be a cognitivist moral functionalism. However, there is no need to postulate the existence of moral truths in order to explain altruistic behavior.
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