Abstract
It is important in its own right to determine what conception of mutual disinterest Rawls has in mind at the various junctions in the text. Furthermore, disambiguating this notion counters a common objection that there is no reason to accept principles of justice that are chosen by rational egoists. The persons in Rawls' OP are not rational egoists. Rather, in identifying with the token persons in society they make the actual interests of the token persons into their ends and they know that they are choosing principles of justice for a society in which moderate selfishness reigns. But this is very remote from stipulating a selfish disposition for the persons in the OP. Hence, the objection is contingent on a natural misreading of Rawls' notion of mutual disinterest and can be readily dispelled by disambiguating this notion into a motivational and an epistemic constraint on the OP.