3 There can therefore be no doubt that you were prepared to reply in such a way as would offend me, if you had only indisputable evidence that the letter was mine. Accordingly, since I do not believe that you would think it right to offend me unless you had just cause, it remains for me to confess, as I now do, my fault as having been the first to offend by writing that letter which I cannot deny to be mine. Why should I strive to swim against the current, and not rather ask pardon? I therefore entreat you by the mercy of Christ to forgive me wherein I have injured you, and not to render evil for evil by injuring me in return. For it will be an injury to me if you pass over in silence anything which you find wrong in either word or action of mine. If, indeed, you rebuke in me that which merits no rebuke, you do wrong to yourself, not to me; for far be it from one of your life and holy vows to rebuke merely from a desire to give offense, using the tongue of malice to condemn in me that which by the truth-revealing light of reason you know to deserve no blame. Therefore either rebuke kindly him whom, though he is free from fault, you think to merit rebuke; or with a father's kindness soothe him whom you cannot bring to agree with you. For it is possible that your opinion may be at variance with the truth, while notwithstanding your actions are in harmony with Christian charity: for I also shall most thankfully receive your rebuke as a most friendly action, even though the thing censured be capable of defence, and therefore ought not to have been censured; or else I shall acknowledge both your kindness and my fault, and shall be found, so far as the Lord enables me, grateful for the one, and corrected in regard to the other.
4. Why, then, shall I fear your words, hard, perhaps, like the boxing-gloves of Entellus, but certainly fitted to do me good? The blows of Entellus were intended not to heal, but to harm, and therefore his antagonist was conquered, not cured. But I, if I receive your correction calmly as a necessary medicine, shall not be pained by it. If, however, through weakness, either common to human nature or peculiar to myself, I cannot help feeling some pain from rebuke, even when I am justly reproved, it is far better to have a tumour in one's head cured, though the lance cause pain, than to escape the pain by letting the disease go on. This was clearly seen by him who said that, for the most part, our enemies who expose our faults are more useful than friends who are afraid to reprove us. For the former, in their angry recriminations, sometimes charge us with what we indeed require to correct; but the latter, through fear of destroying the sweetness of friendship, show less boldness on behalf of right than they ought. Since, therefore, you are, to quote your own comparison, an ox worn out, perhaps, as to your bodily strength by reason of years, but unimpaired in mental vigour, and toiling still assiduously and with profit in the Lord's threshing-floor; here am I, and in whatever I have spoken amiss, tread firmly on me: the weight of your venerable age should not be grievous to me, if the chaff of my fault be so bruised under foot as to be separated from me.
5. Let me further say, that it is with the utmost affectionate yearning that I read or recollect the words at the end of your letter, “Would that I could receive your embrace, and that by converse we might aid each other in learning.” For my part, I say—Would that we were even dwelling in parts of the earth less widely separated; so that if we could not meet for converse, we might at least have a more frequent exchange of letters. For as it is, so great is the distance by which we are prevented from any kind of access to each other through the eye and ear, that I remember writing to your Holiness regarding these words in the Epistle to the Galatians when I was young; and behold I am now advanced in age, and have not yet received a reply, and a copy of my letter has reached you by some strange accident earlier than the letter itself, about the transmission of which I took no small pains. For the man to whom I entrusted it neither delivered it to you nor returned it to me. So great in my esteem is the value of those of your writings which we have been able to procure, that I should prefer to all other studies the privilege, if it were attainable by me, of sitting by your side and learning from you. Since I cannot do this myself, I propose to send to you one of my sons in the Lord, that he may for my benefit be instructed by you, in the event of my receiving from you a favourable reply in regard to the matter. For I have not now, and I can never hope to have, such knowledge of the Divine Scriptures as I see you possess. Whatever abilities I may have for such study, I devote entirely to the instruction of the people whom God has entrusted to me; and I am wholly precluded by my ecclesiastical occupations from having leisure for any further prosecution of my studies than is necessary for my duty in public teaching.
Source: Letters (New Advent)