emigrated to Qom, Motahari could take part in his courses on Principles of Jurisprudence. Ayatollah Montazeri was his classmate in this period. Later, Motahhari emigrated to Isfahan because of hot climate of Qom. There he became familiar with Haj Ali Agha Shirazi who was the teacher of Nahj al-Balagha in 1320 (Solar Hijri calendar) whom Motahhari always described with honor. Later, he joined the University of Tehran, where he taught philosophy for 22 years. Between 1965 and 1973 he also gave regular lectures at the Hosseiniye Ershad in Northern Tehran. Motahhari wrote several books on Islam, Iran, and historical topics. His emphasis was on teaching rather than writing. However, after his death, some of his students worked on writing down his lectures and publishing them as books. As of the mid-2008, the "Sadra Publication" published more than sixty volumes by Motahhari. Nearly 30 books were written about Motahhari or quoted from his speeches. Morteza Motahhari opposed what he called groups who "depend on other schools, especially materialistic schools" but who present these "foreign ideas with Islamic emblems". In a June 1977 article he wrote to warn "all great Islamic authorities" of the danger of "these external influential ideas under the pretext and banner of Islam." It is thought he was referring to the People's Mujahideen of Iran and the Furqan Group. Motahhari was the father-in-law of Iran's former secretary of National Security Council Ali Larijani. It was by Motahari's advice that Larijani switched from computer science to Western Philosophy for graduate studies. A major street in Tehran formerly known as Takhte Tavoos (Peacock Throne) was renamed after him. Morteza Motahari Street connects Sohrevardi Street and Valiasr Street, two major streets in Tehran. Activities during the Islamic revolution During the struggle with Shah's regime, Morteza Motahhari contributed in creating new Islamic discourses. Besides, he was among those who had discussed the conditions of Marja' after the death of Ayatollah Broujerdi. He wrote the book Mutual services of Iran and Islam in such a condition. Also his works had an important impact on expanding the movement of religious reform in early days of revolution. His works primarily consisted of traditional Islamic and Shia thoughts. He wrote an essay about revitalization of religious thought in the occasion. Writing the "need for Candidness in religious leadership", he aimed to show the youth the attractiveness of Islam. Opinions Morteza Motahhari expressed his opinions in different