At the age of 5, Morteza Motahhari went to school without informing his parents. By the age of twelve he learned the preliminary Islamic sciences from his father. He also went to the seminary of Mashhad and studied for two years there in the school of Abd ul-Khan along with his brother. But his studies remained unfinished in Mashhad seminary because of problems faced by his family which obliged him to return to Fariman to help them.