40. I have undoubtedly taken pains so far as I could, not indeed so that the thing might be seen face to face, but that it might be seen by this likeness in an enigma, in how small a degree soever, by conjecture, in our memory and understanding, to intimate God the Father and God the Son: i.e. God the begetter, who has in some way spoken by His own co-eternal Word all things that He has in His substance; and God His Word Himself, who Himself has nothing either more or less in substance than is in Him, who, not lyingly but truly, hath begotten the Word; and I have assigned to memory everything that we know, even if we were not thinking of it, but to understanding the formation after a certain special mode of the thought. For we are usually said to understand what, by thinking of it, we have found to be true; and this it is again that we leave in the memory. But that is a still more hidden depth of our memory, wherein we found this also first when we thought of it, and wherein an inner word is begotten such as belongs to no tongue,—as it were, knowledge of knowledge, vision of vision, and understanding which appears in [reflective] thought; of understanding which had indeed existed before in the memory, but was latent there, although, unless the thought itself had also some sort of memory of its own, it would not return to those things which it had left in the memory while it turned to think of other things.