 Note that the same logic could apply to a theory focused on individuals’ entitlements to certain capabilities or functionings, rather than to a theory of human rights. Martha Nussbaum (2000; 2011: 33–34), for instance, believes that some of the core capabilities to which we all have a claim of justice are capabilities for affiliation and emotion. If, indeed, being affiliated and enjoying the capacity of forming attachments with others are preconditions for achieving other capabilities—such as bodily health, practical reasoning, or play—then the former are more basic. Similarly, on one view (Wolff &amp; de-Shalit 2007), some forms of advantage are “fertile”, in the sense that their achievement either conditions or makes more likely the achievement of other forms of advantage. In this sense, personal relationship goods are “fertile”, provided that the above arguments concerning their instrumental value are correct.