(1) As, then, Knowledge (episthmh) is an intellectual state, from which results the act of knowing, and becomes apprehension irrefragable by reason; so also ignorance is a receding impression, which can be dislodged by reason. And that which is overthrown as well as that which is elaborated by reason, is in our power. Akin to Knowledge is experience, cognition (eidhsis), Comprehension (sunesis), perception, and Science. Cognition (eidhsis) is the knowledge of universals by species; and Experience is comprehensive knowledge, which investigates the nature of each thing. Perception (nohsis) is the knowledge of intellectual objects; and Comprehension (sunesis) is the knolwedge of what is compared, or a comparison that cannot be annulled, or the faculty of comparing the objects with which Judgment and Knowledge are occupied, both of one and each and all that goes to make up one reason. And Science (gnwsis) is the knowledge of the thing in itself, or the knowledge which harmonizes with what takes place. Truth is the knowledge of the true; and the mental habit of truth is the knowledge of the things which are true. Now knowledge is constituted by the reason, and cannot be overthrown by another reason. What we do not, we do not either from not being able, or not being willing - or both. Accordingly we don't fly, since we neither can nor wish; we do not swim at present, for example, since we can indeed, but do not choose; and we are not as the Lord, since we wish, but cannot be: "for no disciple is above his master, and it is sufficient if we be as the master:" not m essence (for it is impossible for that, which is by adoption, to be equal in substance to that, which is by nature); but [we are as Him] only in our having been made immortal, and our being conversant with the contemplation of realities, and beholding the Father through what belongs to Him.

(2) From It the contemplated and contemplating powers of the angelic Minds have their simple and blessed conceptions; collecting their divine knowledge, not in portions, or from portions, or sensible perceptions, or detailed reasonings, or arguing from something common to these things, but purified from everything material and multitudinous, they contemplate the conceptions of Divine things intuitively, immaterially and uniformly, and they have their intellectual power and energy resplendent with the unmixed and undefiled purity, and see at a glance the Divine conceptions indivisibly and immaterially, and are by the Godlike One moulded, as attainable by reason of the Divine Wisdom, to the Divine and Super-wise Mind and Reason. And souls have their reasoning power, investigating the truth of things by detailed steps and rotation, and through their divided and manifold variety falling short of the single minds, but, by the collection of many towards the One, deemed worthy, even of conceptions equal to the angels, so far as is proper and attainable to souls. But, even as regards the sensible perceptions themselves, one would not miss the mark, if one called them an echo of wisdom. Yet, even the mind of demons, qua mind, is from It; but so far as a mind is irrational, not knowing, and not wishing to attain what it aspires to, we must call it more properly a declension from wisdom. But, since the Divine Wisdom is called source, and cause, and mainstay, and completion and guard, and term of wisdom itself, and of every kind, and of every mind and reason, and every sensible perception, how then is Almighty God Himself, the super-wise, celebrated as Mind and Reason and Knowledge? For, how will He conceive any of the objects of intelligence, seeing He has not intellectual operations? or how will He know the objects of sense, seeing He is fixed above all sensible perception? Yet the Oracles affirm that He knoweth all things, and that nothing escapes the Divine Knowledge. But, as I have been accustomed to say many times before, we must contemplate things Divine, in a manner becoming God. For the mindless, and the insensible, we must attribute to God, by excess--not by defect, just as we attribute the irrational to Him Who is above reason; and imperfection, to the Super-perfect, and Pre-perfect; and the impalpable, and invisible gloom, to the light which is inaccessible on account of excess of the visible light. So the Divine Mind comprehends all things, by His knowledge surpassing all, having anticipated within Himself the knowledge of all, as beseems the Cause of all; before angels came to being, knowing and producing angels; and knowing all the rest from within; and, so to speak, from the Source Itself, and by bringing into being. And, this, I think, the sacred text teaches, when it says, "He, knowing all things, before their birth." For, not as learning existing things from existing things, does the Divine Mind know, but from Itself, and in Itself, as Cause, it pre-holds and pre-comprehends the notion and knowledge, and essence of all things; not approaching each several thing according to its kind, but knowing and containing all things, within one grasp of the Cause; just as the light, as cause, presupposes in itself the notion of darkness, not knowing the darkness otherwise than from the light. The Divine Wisdom then, by knowing Itself, will know all things; things material, immaterially, and things divisible, indivisibly, and things many, uniformly; both knowing and producing all. things by Itself, the One. For even, if as becomes one Cause, Almighty God distributes being to all things that be, as beseems the self-same, unique Cause, He will know all things, as being from Himself, and pre-established in Himself, and not from things that be will He receive the knowledge of them; but even to each of them, He will be provider of the knowledge of themselves, and of the mutual knowledge of each other. Almighty God, then, has not one knowledge, that of Himself, peculiar to Himself, and another, which embraces in common all things existing; for the very Cause of all things, by knowing Itself, will hardly, I presume, be ignorant of the things from Itself, and of which It is Cause. In this way then, Almighty God knows existing things, not by a knowledge of things existing, but by that of Himself. For the Oracles affirm, that the angels also know things on the earth, not as knowing them by sensible perceptions, although objects of sensible perception, but by a proper power and nature of the Godlike Mind.

(3) In addition to these things, we must examine how we know God, Who is neither an object of intellectual nor of sensible perception, nor is absolutely anything of things existing. Never, then, is it true to say, that we know God; not from His own nature (for that is unknown, and surpasses all reason and mind), but, from the ordering of all existing things, as projected from Himself, and containing a sort of images and similitudes of His Divine exemplars, we ascend, as far as we have power, to that which is beyond all, by method and order in the abstraction and pre-eminence of all, and in the Cause of all. Wherefore, Almighty God is known even in all, and apart from all. And through knowledge, Almighty God is known, and through agnosia. And there is, of Him, both conception, and expression, and science, and contact, and sensible perception, and opinion, and imagination, and name, and all the rest. And He is neither conceived, nor expressed, nor named. And He is not any of existing things, nor is He known in any one of existing things. And He is all in all, and nothing in none. And He is known to all, from all, and to none from none. For, we both say these things correctly concerning God, and He is celebrated from all existing things, according to the analogy of all things, of which He is Cause. And there is, further, the most Divine Knowledge of Almighty God, which is known, through not knowing (αγνοσια) during the union above mind; when the mind, having stood apart from all existing things, then having dismissed also itself, has been made one with the super-luminous rays, thence and there being illuminated by the unsearchable depth of wisdom. Yet, even from all things, as I said, we may know It, for It is, according to the sacred text, the Cause formative of all, and ever harmonizing all, and (Cause) of the indissoluble adaptation and order of all, and ever uniting the ends of the former to the beginnings of those that follow, and beautifying the one symphony and harmony of the whole.