In Augustine's Confessions, Book VII, Chapter IX, Section 13, he provides a very helpful summary of what he had learned from Greek Philosophy and how it is similar to Christianity, especially books by John the Evangelist (ie. Gospel of John). I was reminded of his passage by C.H. Dodd's book, Interpretation of the Fourth Gospel, in where he considers pagan religions that have a similar background to the Gospel of John, especially with the Corpus Hermeticum, Gnosticism, Mandaeism, Stoicism and Philo of Alexandria's works. As you read the following quotation, think about John 1:1f.
He Compares the Doctrine of the Platonists Concerning the Λόγος With the Much More Excellent Doctrine of Christianity.
13. And Thou, willing first to show me how Thou “resistest the proud, but givest grace unto the humble" and by how great art act of mercy Thou hadst pointed out to men the path of humility, in that Thy “Word was made flesh” and dwelt among men,—Thou procuredst for me, by the instrumentality of one inflated with most monstrous pride, certain books of the Platonists, translated from Greek into Latin. And therein I read, not indeed in the same words, but to the selfsame effect, enforced by many and divers reasons that, “In the beginning was the Word, and the Word was with God, and the Word was God. The same was in the beginning with God. All things were made by Him; and without Him was not any thing made that was made.” That which was made by Him is “life; and the life was the light of men. And the light shineth in darkness; and the darkness comprehendeth it not.” And that the soul of man, though it “bears witness of the light,” yet itself “is not that light; but the Word of God, being God, is that true light that lighteth every man that cometh into the world.” And that “He was in the world, and the world was made by Him, and the world knew Him not.” But that “He came unto His own, and His own received Him not. But as many as received Him, to them gave He power to become the sons of God, even to them that believe on His name.” This I did not read there.
Augustine of Hippo, Confessions, Book VII, Chapter IX. —cf. page 10, C.H. Dodd, Interpretation of the Fourth Gospel