Etye Steinberg

“Basic equality” is the thesis that all (or nearly all) human beings are equal in moral status. Widespread interpersonal differences among humans make the task of justifying basic equality notoriously difficult. One strategy for circumventing this difficulty is to identify some morally significant binary (“all-or-nothing”) property that all humans have. This strategy seems promising: if the basis of equality is binary, then those who have it have it equally. However, skeptics have argued against this strategy on the grounds that a proper defense of basic equality requires that we identify a morally significant property that can vary among humans but does not in fact vary. This paper examines various ways in which this skeptical argument can be motivated and concludes that they all fail.

Neo-Aristotelian ethical naturalism aims to place moral virtue in the natural world by showing that moral goodness is an instance of natural goodness—a kind of goodness supposedly also found in the biological realm of plants and non-human animals. One of the central issues facing neo-Aristotelian naturalists concerns their commitment to a kind of function ascription based on the concept of the flourishing of an organism that seems to have no place in modern biology. In this paper, I offer a novel defense of this functional commitment by appealing to the organizational account of biological function. I argue that the flourishing-based concept of function that forms the basis of the neo-Aristotelian account of natural goodness is explanatorily indispensable to biology, and therefore essential to the understanding of living things.