1 You are sending me letter upon letter, and often urging me to answer a certain letter of yours, a copy of which, without your signature, had reached me through our brother Sysinnius, deacon, as I have already written, which letter you tell me that you entrusted first to our brother Profuturus, and afterwards to some one else; but that Profuturus was prevented from finishing his intended journey, and having been ordained a bishop, was removed by sudden death; and the second messenger, whose name you do not give, was afraid of the perils of the sea, and gave up the voyage which he had intended. These things being so, I am at a loss to express my surprise that the same letter is reported to be in the possession of most of the Christians in Rome, and throughout Italy, and has come to every one but myself, to whom alone it was ostensibly sent. I wonder at this all the more, because the brother Sysinnius aforesaid tells me that he found it among the rest of your published works, not in Africa, not in your possession, but in an island of the Adriatic some five years ago.
2. True friendship can harbour no suspicion; a friend must speak to his friend as freely as to his second self. Some of my acquaintances, vessels of Christ, of whom there is a very large number in Jerusalem and in the holy places, suggested to me that this had not been done by you in a guileless spirit, but through desire for praise and celebrity, and éclat in the eyes of the people, intending to become famous at my expense; that many might know that you challenged me, and I feared to meet you; that you had written as a man of learning, and I had by silence confessed my ignorance, and had at last found one who knew how to stop my garrulous tongue. I, however, let me say it frankly, refused at first to answer your Excellency, because I did not believe that the letter, or as I may call it (using a proverbial expression), the honeyed sword, was sent from you. Moreover, I was cautious lest I should seem to answer uncourteously a bishop of my own communion, and to censure anything in the letter of one who censured me, especially as I judged some of its statements to be tainted with heresy. Lastly, I was afraid lest you should have reason to remonstrate with me, saying, “What! Had you seen the letter to be mine—had you discovered in the signature attached to it the autograph of a hand well known to you, when you so carelessly wounded the feelings of your friend, and reproached me with that which the malice of another had conceived?”
Source: Letters (New Advent)