![Iamblichus (245-325 A.D.)](https://cdn.shopify.com/s/files/1/0545/8601/5937/files/Iamblichus-min.jpg?v=1634421635)
He initially studied under Anatolius of Laodicea, and later went on to study under Porphyry, a pupil of Plotinus, the founder of Neoplatonism. He disagreed with Porphyry over the practice of theurgy; Iamblichus responds to Porphyry's criticisms of theurgy in a book attributed to him, De Mysteriis Aegyptiorum (On the Egyptian Mysteries). Only a fraction of Iamblichus' books have survived.