The great Persian Sufi metaphysician ʿAzīz al-Dīn Nasafī contains an abundance of fruitful reflections on the problem of evil, human suffering, and the transient nature of the material world, all seen from the vantage point of waḥdat al-wujūd or the oneness of being. After outlining Nasafī’s treatment of evil and suffering in detail, I will then seek to evaluate Mohammed Rustom’s aphorisms on God, evil, and liberation in their own light, thereby highlighting the creative ways in much Muslim philosophers past and present have engaged with topics of abiding human concern.