1. Chap. I.

I thank you that, instead of a mere formal salutation, you wrote me a letter, though it was much shorter than I would desire to have from you; since nothing that comes from you is tedious, however much time it may demand. Wherefore, although I am beset with great anxieties about the affairs of others, and that, too, in regard to secular matters, I would find it difficult to pardon the brevity of your letter, were it not that I consider that it was written in reply to a yet shorter letter of my own. Address yourself, therefore, I entreat you, to that exchange of letters by which we may have fellowship, and may not permit the distance which separates us to keep us wholly apart from each other; though we are in the Lord bound together by the unity of the Spirit, even when our pens rest and we are silent. The books in which you have laboured to bring treasures from the Lord's storehouse give me almost a complete knowledge of you. For if I may not say, "I know you," because I have not seen your face, it may with equal truth be said that you do not know yourself, for you cannot see your own face. If, however, it is this alone which constitutes your acquaintance with yourself, that you know your own mind, we also have no small knowledge of it through your writings, in studying which we bless God that to yourself, to us, to all who read your works, He has given you as you are.