 Some philosophers (Brake 2017; Cordelli 2015a) claim that certain personal relationship goods are akin to Rawlsian primary goods because they are necessary to develop the two moral powers of persons: a sense of justice and the capacity for a conception of the good. If so, this is a second Rawlsian argument for them. It appears different from the argument in the previous section, since some goods may be all-purpose, yet not strictly necessary for developing the two moral powers (for example, money).