In his Liberalism without Perfection, Jonathan Quong describes Rawls political liberalism as an internal project that justifies itself to reasonable citizens and aims to show the coherence of liberalismThis internal interpretation does not take the different implications of reasonable citizens seriously, and cannot explain Rawls arguments for reasonable pluralism and a series of political conceptions, hence is incompleteFurthermore, it also regards the constituency of Rawls arguments as the idealized reasonable citizens which is identified by some certain normative conceptions mistakenly, thus failing to realize the fact that political liberalism is eventually justified by way of appealing to actual reasonable citizens and their distinct comprehensive doctrinesActually, political liberalism is an open project which faces up to the diverse reasonable comprehensive doctrines existing in current societies, rather than an internal project which belongs to any distinct political schools.