How did Augustine “Christianize” Plato…
For starters, there are St. Augustine’s theories of illumination, of the intellect, and of the basic nature of the soul – which are similar to Platonism. Augustine speaks very favorably of “the Platonists” in many of his works. You can get some idea from this heading of
City of God 8.5:
Chapter 5.—That It is Especially with the Platonists that We Must Carry on Our Disputations on Matters of Theology, Their Opinions Being Preferable to Those of All Other Philosophers.
Source:
newadvent.org/fathers/120108.htm
Ah – found a good link for you:
Augustine and Platonism
www-personal.umich.edu/~rdwallin/syl/GreatBooks/202.W99/Augustine/AugPlaton.htm
And here is a relevant paragraph from “Augustine” in the Stanford Encyclopedia of Philosohy:
“The single most decisive event, however, in Augustine’s philosophical development has to be his encounter with those unnamed books of the Platonists in Milan in 384 [Confessions VII.9.13]. While there are other important influences, it was his encounter with the Platonism ambient in Ambrose’s Milan that provided the major turning point, reorienting his thought along basic themes that would persist until his death forty-six years later. There has been controversy regarding just which books of the Platonists Augustine encountered [O’Connell 1968, pp. 6-10; O’Donnell 1992, vol. II, pp. 421-423; Beatrice, 1989], but we know from his own account that they were translated by Marius Victorinus [Confessions VIII.2.3], and there is widespread agreement that they were texts by Plotinus and Porphyry, although there is again controversy regarding how much influence is to be attributed to each [O’Connell 1968, pp. 20-26; O’Donnell 1992, vol II, pp. 423-4]. These uncertainties notwithstanding, Augustine himself makes it clear that it was his encounter with the books of the Platonists that made it possible for him to view both the Church and its scriptural tradition as having an intellectually satisfying and, indeed, resourceful content.”
“As decisive as this encounter was, however, it would be a mistake simply to view Augustine’s writings as the uncritical application of a Neoplatonic framework to a static body of Christian doctrine…”
Source:
plato.stanford.edu/entries/augustine/
The two descriptions of mystical experiences in the Confessions are reminiscent of the works of Plotinus, the 3rd century founder of Neoplatonism, whose ideas Augustine knew indirectly. To say this differently, an learned reader of St. Augustine’s day may have seen in his descriptions an implicit allusion to what Neoplatonists had described.
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