This slim Hackett edition includes two of Augustine's early dialogues written just after he had given up Manichaeism: "Against the Academicians" and "The Teacher." It also has an immensely useful group of appendices excerpting paragraphs from Augustine's other works on the topic of learning (divine illumination).
The first dialogue involves a group of Augustine's friends and students at Cassiciacum; the second involves his sixteen year old son, Adeodatus. Both are highly interesting; in the "Revisions," Augustine expresses regret over several of his formulations and expressions in the first work. Both deal with semiotics as an attempt to understand how it is the human being learns by divine illumination.
"Against the Academicians" records a conversation held over several days at the quasi-monastic community Augustine began at Cassiciacum after he had rejected the worldly life of a professional rhetorician. In it, he carries on a Socratic dialogue with two main interlocutors on the notion of wisdom, truth, 'truth likeness,' and plausibility. The so-called Academicians were the teachers in the Third Academy dating to the latter half of the 2nd century B.C. and into the 1st century, including such individuals as Carneades and Philo of Larissa, though they traced their Pyrrhonist leanings back to Arcesilaus in the 3rd century. At any rate, for a while Augustine himself was a kind of Academician-skeptic, or at least he greatly sympathized with their general perspective. These men were famous for asserting that they do not and cannot know the truth, but that they seek it by pursuing 'truthlike' or 'plausible' things. Augustine's major points in this dialogue are that whatever is 'truthlike' can only be known because one already knows the truth; otherwise, how could anything be said to be like something that is not known? There would be no model or standard by which to judge anything, so, as Augustine concludes, 'truthlikeness' reveals the Academicians' secret teaching which is that of classic Platonism with its unspoken doctrines. Augustine repeatedly states in this work and in several other places that the skeptics were essentially putting up a smokescreen to guard their sacred doctrines because they did not want the rabble to receive them and perversely corrupt them. In this work Augustine also puts forward his agreement with Plato of the indelible and sensible worlds (3.17.37). Essentially, remembering Plato's analogy of the line, for the world of things only appearances guide us, and this is analogous to how reason guides us to know eternal ideas. Augustine then praises Plato's "visage" which "is the most pure and bright in philosophy" (3.18.41) before also praising Plotinus; "Plato should be thought of as coming to life again in Plotinus." The following paragraph is probably the most interesting in the entire work: "This philosophy is not of this world - the philosophy that our Holy Writ rightly abhors - but that of the other world, the intelligible world. Yet the most subtle chain of reasoning would never call back to this intelligible world souls that have been blinded by the manifold shadows of error and rendered forgetful by the deepest filth from the body, had not God the Highest, moved by a certain compassion for the multitude, humbled and submitted the authority of the Divine Intellect even to the human body itself. Our souls, awakened not only by its precepts but also by its deeds, could return to themselves and regain their homeland without the strip of disputation" (3.19.42). This is the most important paragraph of this early work.
"The Teacher" is also fascinating, in part because it reports a real (and thoroughly brilliant) conversation between Augustine and his son, Adeodatus. Augustine questions his son about "words," "names," and "things." The purpose is to reveal to Adeodatus that all speaking happens to learn or to remind. "Teaching" is actually learning; each time a teacher says something to a student, he is essentially asking a question: "Does this strike you? Do you find this to be true in your intellect?" Then the student remembers (via Platonic anamnesis) and sees that whatever was spoken does or does not conform to the Truth within. At the end, dialogue becomes monologue (as often happens in Platonic works) and Augustine says to his son, "Regarding each of the things we understand, however, we don't consult a speaker who makes sounds outside us, but the Truth that presides within over the mind itself, though perhaps words prompt us to consult Him. What is more, He Who is consulted, He Who is said to dwell in the inner man, does teach: Christ - that is, the unchangeable power and everlasting wisdom of God, which every rational soul does consult, but is disclosed to anyone, to the extent that he can apprehend it, according to his good or evil will. If at times one is mistaken, this doesn't happen by means of a defect in the Truth consulted, just as it isn't a defect in light outside that the eyes of the body are often mistaken - and we admit that we consult this light regarding visible things, that it may show them to us to the extent that we have the ability to make them out" (11.38). Augustine later says that "we should not call anyone on earth our teacher, since there is one in heaven Who is the Teacher of all. Furthermore, He Himself will teach us what 'in heaven' is - He Who prompts us externally through men by means of signs, so that we are instructed to be inwardly turned toward Him. To know and love Him is the happy life which all proclaim they seek, although there are few who may rejoice in having really found it" (13.46).
There has been a debate for forever about the nature of Augustine's theory of divine illumination. Many scholars in the last two centuries have been endlessly debating whether or not Augustine's theory means all knowledge whatsoever (even of my mug in front of me) must come from Christ, or whether Augustine means, rather, knowledge of 'the good life,' or, the 'the way to live,' and thus, ultimately, God. What I have run into is that scholars often read Augustine isolated apart from Plato and Plotinus; I think he mainly shares their views in this regard. Keeping Plato's analogies of the sun and of the line in front of us, Augustine seems to be saying that Christ is the Illuminator of absolutely everything. If He shines upon a thing or a person, we come to know it or him; if He does not shine (because our eyes are darkened by sin), then we cannot come to full knowledge of anything. The theory is divine illumination, not divine intervention. It is not as if Augustine is saying, "Consider this random pagan over here. He knows that his stove is hot. Therefore, Christ zapped into his head such knowledge." This 'knowledge' corresponds to the bottom segment of Plato's line, or, if you like, the recognition of the physical causes of phenomena that we see. It does not correspond to eternal ideas (forms) let alone the Good. Rather, what Augustine seems to mean, is that since Christ is the Truth (John 14:6), everything that resonates or 'rings true' finds its source and goal in Christ (Rom. 11:36). Augustine's view is cosmic and mystical, not interventionist and mechanical. Christ is the radiance of the Father, the exact imprint of His nature (Heb. 1:3). He reveals the Good: God alone (Mark 10:18). And so, while anyone can obtain sensible data about things, only Christ the Teacher illuminates truths: the purposes and essences of things.