 A third strategy, which is employed within Kantian ethics, is to argue that respect for persons logically entails respect for nonpersons. For example, one can argue that rational nature is to be respected not only by respecting humanity in someone’s person but also by respecting things that bear certain relations to rational nature, for example, by being fragments of it or necessary conditions of it. Respect would thus be owed to humans who are not persons and to animals and other sentient beings (Foreman 2017; Rocha 2015; Wood 1998). Another strategy argues against Kant that we can both acknowledge that rational moral agents have the highest moral standing and worth and are owed maximal respect, and also maintain that other beings have lesser but still morally significant standing or worth and so deserve less but still some respect. So, although it is always wrong to use moral agents merely as means, it may be justifiable to use nonpersons as means (for example, to do research on human embryos or kill animals for food) provided their moral worth is also respectfully acknowledged (Meyer and Nelson, 2001). Much philosophical work has been done, particularly in environmental ethics, to determine the practical implications of the claim that things other than persons are owed respect (e.g., Corral 2015; Foreman 2015; Schmidtz 2011; Bognar 2011; Connolly 2006; Wiggins 2000; Westra 1989).