“…The author, best known for her constructivist interpretation of Kant's ethics, argues, contrary to classical conceptions of Kantian philosophy, that human beings have a moral obligation to treat sentient animals as ends in themselves (Korsgaard, 2018, p. xi). Although in Fellow Creatures Korsgaard reiterates her commitment to the constructivist thesis that everything has value for someone (see Bagnoli, 2017, Section 7.2; Desmons, 2018; Korsgaard, 1996, Lecture 3; Street, 2010, Section 3), she nevertheless sets out to demonstrate that such a position would categorically imply that every sentient creature should be granted a right to what is good for them (Korsgaard, 2018, pp. 10–11).…”