Abstract: | In his most recent book Moral Minds, Marc Hauser argues that many foundational moral instincts have clear biological explanations. To make this argument, Hauser focuses on the similarities between the acquisition of morality and the acquisition of language. Similar to language, one learns a particular moral framework from one's environment, but the biological components necessary for moral development are universal. While I agree with Hauser's overall conclusion regarding moral instincts, I reject the notion that a purely biological analysis of morality can provide an adequate framework for justification. The problem, as I see it, is Hauser acknowledges the bottom-up influences taking place between biology and moral formation, but he refuses to account for the top-down influences that occur between metaphysical assumptions, moral beliefs, and biological conclusions. Thus, the current critique will focus on the connection between Hauser's failure to account for top-down influence and the subsequent shortcoming related to moral justification. |