He considered Marxism as a great threat for youths and revolution of Iran therefore he tried to criticize Marxism along with pioneer figures like Ali Shariati. Also his commentary on the book of Mulla Sadra influenced many scholars. Besides, he also emphasized on the social, cultural and historical contingencies of religious knowledge. Motahhari argued that if someone compares fatwas belong to different jurists and at the same time considers their lives and states of knowledge then it is clear that the presuppositions of jurists and its knowledge affected their knowledge.