“From it genesis twelve hundred years ago to today, Islamic philosophy (al-hikmah; al-falsafah) has been one of the major intellectual traditions within the Islamic world, and it has influenced and been influenced by many other intellectual perspectives, including Scholastic theology (kalam) and doctrinal Sufism (al-ma'rifah or al-tasawwuf al-'ilmi) and theoretical gnosis ('irfan-i nazari).”