Rawls and Animal Moral Personality

SIMPLE SUMMARY: “Moral personality” is required in order to be entitled to justice in John Rawls’s theory of justice, a famous and influential theory in political philosophy. The concept of moral personality involves the possession of two “moral powers”. One moral power is a capacity for a conception of the good, being a conception of what is regarded as worthwhile in life, while the other is a capacity for a sense of justice. Rawls claims that non-human animals (hereafter, “animals”) do not possess these moral powers, and accordingly he omits them altogether from his theory of justice. In this article, I raise doubts about this omission, outlining how at least some animals may indeed possess the moral powers, albeit to a lesser extent than most humans. In this regard, the distinction between humans and animals can be seen as one of degree rather than kind. A proper acknowledgement of animal abilities suggests that Rawls’s theory requires alteration to accommodate the position of animals. ABSTRACT: The relationship between animal rights and contractarian theories of justice such as that of Rawls has long been vexed. In this article, I contribute to the debate over the possibility of inclusion of animals in Rawls’s theory of justice by critiquing the rationale he gives for their omission: that they do not possess moral personality. Contrary to Rawls’s assumptions, it appears that some animals may possess the moral powers that comprise moral personality, albeit to a lesser extent than most humans. Some animals can act in pursuit of preferences and desires (and communicate them non-verbally), which might be taken as implicitly selecting a conception of the good; further, scientific research demonstrating inequity aversion and social play behaviors suggests that some animals can have a sense of justice relating to their own social groups. I conclude that Rawls’s theory needs to acknowledge any animals that can be considered to meet the threshold of moral personality, while the concept of moral personality as a range property may also require reconsideration.