Throughout the 1940s and 1950s, Taleghani continued his activism, organizing classes and participating in international conferences to promote Islamic principles and advocate for social justice.Taleghani’s political activism intensified during the reign of the Pahlavi regime, earning him multiple imprisonments over the years. Despite facing persecution and imprisonment, Taleghani remained steadfast in his commitment to opposing tyranny and advocating for the rights of the oppressed. His interactions with leftist political prisoners during his time in jail influenced his thinking, leading to the publication of his influential book, “Islam and Ownership,” which argued for collective ownership as compatible with Islamic principles.