Philosophically considered, therefore, the Gnostic systems are very unlike the rigorous self-consistency of Neoplatonism; although they certainly contain almost all the elements which enter into the Neoplatonic theory of the universe.
In Athens a Neoplatonic school still flourished.
But the link that connects him with churchly realism, as well as with the NeoPlatonic mysticism, is the conviction that complete and certain knowledge rests wholly on divine revelation, i.e.
For the Stoic and Neoplatonic uses of Aoyos, as also for those of Philo Judaeus and the Fathers, see Logos.
Elaborate doctrines of emanation, largely based on Neoplatonic ideas, are also propounded by some of the Arabic philosophers, as by Farabi and Avicenna.
John the Scot was still E acquainted with Greek, seeing that he translated the work of the pseudo-Dionysius; and his speculative genius achieved the fusion of Christian doctrine and Neoplatonic thought in a system of quite remarkable metaphysical completeness.
The moral philosophy of Aquinas is Aristotelianism with a Neoplatonic tinge, interpreted and supplemented by a view of Christian dogma derived chiefly from Augustine.
The more enlightened Ilarranians, however, adopted a religious philosophy strongly tinged with Neoplatonic and Christian elements.
In the chief cities of the empire Neoplatonic schools flourished till the beginning of the 5th century; during this period, indeed, they were the training-schools of Christian theologians.
The reign of Gallienus (260-268) would suit the tone of its references to the Roman emperor (Waitz, P. 74), and also any polemic against the Neoplatonic philosophy of revelation by visions and dreams which it may contain.