Rawls's political liberalism introduces important modifications into the idea of justice presented in A Theory of Justice. His understanding of politics is compatible with several accounts of the political realm. Though Rawls's political liberalism claims to oppose perfectionist, teleological, and utilitarian traits, his own account suggests a more complex view in which justice as fairness is not exempt from perfectionist, teleological, and utilitarian elements. Rawlsian political liberalism is governed by the centrality of juridical institutions, which are the embodiment of public reason.