In Political Liberalism (1993), Rawls turned towards the question of political legitimacy in the context of intractable philosophical, religious, and moral disagreement amongst citizens regarding the human good. Such disagreement, he insisted, was reasonable—the result of the free exercise of human rationality under the conditions of open enquiry and free conscience that the liberal state is designed to safeguard. The question of legitimacy in the face of reasonable disagreement was urgent for Rawls because his own justification of Justice as Fairness relied upon a Kantian conception of the human good that can be reasonably rejected. If the political conception offered in A Theory of Justice can only be shown to be good by invoking a controversial conception of human flourishing, it is unclear how a liberal state ordered according to it could possibly be legitimate.
In Political Liberalism (1993), Rawls turned towards the question of political legitimacy in the context of intractable philosophical religious, a,nd moral disagreement amongst citizens regarding the human good. Such disagreement he insisted, was reasonable—the result of the free exercise of human rationality under the conditions of open enquiry and free conscience that the liberal stat,e is designed to safeguard. The question of legitimacy in the face of reasonable disagreement was urgent for Rawls because his own justification of Justice as Fairness relied upon a Kantian conception of the human good that can be reasonably rejected. If the political conception offered in A Theory of Justice can only be shown to be good by invoking a controversial conception of human flourishing, it is unclear how a liberal state ordered according to it could possibly be legitimate.