Philippa Foot's virtue ethics has an Achilles' heel ('Natural Goodness')

My aim in this article is to argue that Philippa Foot fails to provide a convincing basis for moral evaluation in her book Natural Goodness. Foot's proposal fails because her conception of natural goodness and defect in human beings either sanctions prescriptive claims that are clearly objectionable or else it inadvertently begs the question of what constitutes a good human life by tacitly appealing to an independent ethical standpoint to sanitize the theory's normative implications. Foot's appeal to natural facts about human goodness is in this way singled out as an Achilles' heel that undermines her attempt to establish an independent framework for virtue ethics. This problem might seem to be one that is uniquely applicable to the bold naturalism of Foot's methodology; however, I claim that the problem is indicative of a more general problem for all contemporary articulations of virtue ethics.