Rawls's recent modification of his theory of justice claims that political liberalism is free-standing and "falls under the category of the political. It works entirely within that domain and does not rely on anything outside it" In this article I pursue the metatheoretical goal of obtaining insight into the anthropological assumptions that have remained so far unacknowledged by Rawls and critics alike. My argument is that political liberalism has a dependence on comprehensive liberalism and its conception of a self-serving subjectivity that is far more binding as well as undesirable than it has been so far acknowledged. I proceed with a heuristic approach that introduces us to the possibility that political liberalism presupposes tacitly the Occidental metanarrative of reason harnessing rampant self-interest and subordinating it to a higher-order interest. As the presuppositions of political liberalism emerge, I draw from the debate between Rawls and Habermas in order to illustrate my argument for the existence of a dependence on these presuppositions. I outline some implications of the anthropological basis of political liberalism and conclude by exemplifying them with reference to Rawls's comments on the division of a cake.