Complex sentence: Motahhari is considered among the important influences on the ideologies of the Islamic Republic, and was a co-founder of Hosseiniye Ershad and the Combatant Clergy Association ("Jāme'e-ye Rowhāniyat-e Mobārez").
Split into simpler sentences: Motahhari is considered among the important influences on the ideologies of the Islamic Republic. He was a co-founder of Hosseiniye Ershad and the Combatant Clergy Association ("Jāme'e-ye Rowhāniyat-e Mobārez").