TY - JOUR AU - Sadeghi, Masoud AU - jalali, amir TI - A Study of the Views of Three Muslim Philosophers on the Four-Fold Virtues: Ibn Miskawayh, Khwājah Naṣīr al-Dīn Ṭūsī, and Ḥakīm J‘afar Kashfī JO - History of Philasophy VL - 10 IS - 1 SP - 153 EP - 176 PY - 2019 DO - ER -