Islam 33 History 25 Sufism 23 Doctrines 19 Islamic philosophy 19 Description and travel 13 Philosophy 10 more ... Travel 10 Philosophy, Arab 9 Civilization 6 Islamic law 6 Muslims 6 Optics 6 Philosophy, Medieval 6 Religious aspects 6 Religious life 6 Abbasids 5 History and criticism 5 Ismailites 5 Mathematics, Greek 5 Descriptions et voyages 4 Geometry 4 God (Islam) 4 Metaphysics 4 Soul 4 Voyages and travels 4 Civilisation 3 Interpretation and construction 3 Jewish philosophy 3 Judaism 3 less ...