In Fellow Creatures, Christine Korsgaard claims that human beings ought to treat all sentient animals as ends in themselves. However, in this article, I argue that Korgaard's method goes beyond what a coherent constructivist conception allows, and I claim that we should therefore adopt a Humean rather than a Kantian version of constructivism. I believe that such a conception permits us to hold substantial ethical positions about non-human animals without having to compromise our ontological commitments.

Dans Fellow creatures, Christine Korsgaard soutient que les êtres humains auraient l'obligation morale de traiter les animaux sensibles comme des fins en soi. Cependant, cet article tente de démontrer que la méthode korsgaardienne dépasse ce que permet une théorie constructiviste conséquente et soutient que nous devrions opter pour une version humienne plutôt que kantienne du constructivisme. Selon moi, une telle conception permet tout à fait de soutenir des positions éthiques substantielles sur la question animale sans avoir à compromettre ses engagements ontologiques.

Christine Korsgaard’s Self-Constitution: Agency, Identity, and Integrity is an impressive endeavour to synthesize the ethics of Plato and Kant in a comprehensive account of action and agency that locates the key to understanding both in self-constitution. A purportedly comprehensive account of action and agency will fail on its own terms if it cannot adequately account for some morally salient phenomenon. Korsgaard’s account fails to adequately account for the possibility of evil actions and evil people. If self-constitution is key to action and agency, then we must abandon the Platonic and Kantian elements that Korsgaard endorses.