 Other Locke scholars defend substance readings of Locke on persons. They turn to Locke’s claims about substance, power, and agency, to conclude that if an entity has any power whatsoever it has to be a substance. Persons have powers. Thus, persons have to be substances for Locke (for arguments along these lines, see Gordon-Roth 2015, Rickless 2015, Chappell 1990). They then have to explain what Locke means when he asserts that the identity of any person does not rest in the identity of substance. Those who do not take the relative identity path usually end up working to get clear on what Locke could mean by “substance” when he makes this claim. Many conclude that what Locke means is that the identity of any person does not depend upon the identity of the simple substances that compose or constitute her. There are numerous defenders of this position today (see Alston and Bennett 1988, Bolton 1994, Chappell 1990, and Uzgalis 1990). Thus questions about two of the most basic features of Locke’s picture of personal identity—What is Locke’s (general) view on identity?; and, What kind of entity is a person, exactly?—are the subject of ongoing  debate.[5]