Miscellanies 6.8.68

This pleasure-loving and self-loving wisdom the apostle calls “the wisdom of this age,” as teaching only the things of this world and about it, and consequently subject, under their government, to the rulers here. That is why this partial philosophy is elementary, while the truly perfect understanding is concerned with intelligible things beyond the world, and with things still more spiritual than these, “which eye has not seen and ear has not heard, nor has it entered the heart of men,” until the teacher made the account of them clear to us, revealing the holy of holies and, ascending further, things holier still, to those who are genuinely, and not illegitimately, heirs of the Lord's adoption. For we dare to say (for here lies the faith of the one who knows) that the one who truly knows understands all things and comprehends all things, with firm apprehension even of things that are hard for us, as were James, Peter, John, Paul, and the rest of the apostles. For prophecy is full of knowledge, as given by the Lord and again made clear through the Lord to the apostles. And is not knowledge the property of the rational soul trained for this, so that through knowledge it may be enrolled for immortality? For both are powers of the soul: knowledge and impulse.