Rawls formulates liberalism according to two conceptions of reasonable and rational, which, tied to two particular notions of society and person, define the basis of liberalism in Rawlsian thought. This article argues that Mehdi Haeri Yazdi's important work, Hekmat va Hokumaat, should be considered as a work of liberal theory, and shows how it endorses liberal conceptions of the reasonable and the rational. The main elements of Ha'eri's liberalism are his thesis that philosophy has priority over jurisprudence, his doctrine of contract based upon concepts of agency contract (aqd-e vekalat) and joint private ownership (malekiyat-e shakhsi-ye musha), and his defense of individualism against the alleged collectivism of Rousseau.