This letter is addressed from Michael Psellos to Romanos Diogenes while he was on campaign against the Turks in one of his first two. When I first read it, I took it for his first campaign", but the Byzantine Prosopography says it refers to his second which would make more sense given what you will see below as Romanos was only in Constantinople before going on campaign after his marriage a grand total of three or so months, far too short a time to...(see here.)

Bibliotheca graeca Medii Aevi by Constantine Sathas. Tomos V. 1876, pgs. 224-7

Could I see you with my own eyes leading the Roman phalanx and fighting the enemy, boldly advancing on them astonishing them with your martial prowess as they then fall in battle unable to resist your advance, there would be nothing incredible about it because I having known you for many days know full well the might of your reach as well as the courage of your spirit and your braveness and insuperability in danger such that I reckon and esteem not even the Turks and Arabs worthy of you in battle, but only men like excellent Achilles and Alexander of Macedon. Yet they were fortunate to have men such as Homer for the former and Aristotle the latter, being clever speakers and men able to turn the littlest of things into great things, to praise them , while you, our great emperor, soldier, and general, my own Psellos-ing [pun on verb psellizein which also means to stammer, mumble] voice tries to suffice for them.

My lord emperor, you should know that the entire city was shaken by your great victory with everyone being astounded because you did not vaunt your victory or put it to writing, but left only me to act as its trumpet sounding over all other sound. When my Lady the Empress, that great advantage of the Romans, that decoration and ornament of your spirit, heard of your great victory, she was overcome by its sweetness and straightaway started to cry tears of joy raising her hands up to God and uttered customary acclamations for you...defeat entered...and asked again to verify all of it being astonished and tearful. She was amazed by your withal steadfastness and adroitness as well as your unutterable love for her crying because she was apart from this which she had met through the assistance of God. I reported to her first the love you have for the Roman Empire and that you would die a thousand deaths for the welfare of it. After that, I told her about your remaining superior qualities: your firmness of mind, your noble judgment, your continuous indefatigability for labors, your wisdom, your sharpness, your eloquence, and urbanity. I added also my own recommendation of the wisdom I had seen with my own eyes as well as the perfection and moderateness of life, not embellishing your virtues with words, but having my own words embellished by them.

For I am either conjecturer or audience to the unforgettable having experienced the distinctions of your soul and so holding you incomparable beside those praised as I have seen you with my own two eyes, while of them I have only heard hearsay. As I know precisely that my Lady the Empress has been filled with all measure of love though I shared this with her that I had recounted your superior qualities to her adding some rhetoric and pomp to what I said.

I have reported it as well to the most holy Patriarch heaven's voice's sounding and announced it to the entire Synod, Senate, and public so that not even the general public had not heard of it.

I also whispered this news in the ear of my young emperor and lord little Diogenes baby-talking in his ear about the fair deeds of his father to which he imperceptibly with a natural and unutterable giggle responded smiling.

There are two things, my God-crowned lord and emperor, that I have received from your Majesty: truth proceeding you lips and unutterable affection for me flowing from your holy spirit such that I will not cease struggling unto them. As I will be defeated the deeds of you God-inspired Majesty, I will conquer you in words and the instruments of the tongue and hand, since you make me want to praise and raise you up without compare setting you thus above the other emperors and produce a book on you like a meadow filled with flowers and charm. I have and with the empress you are for me, such is your surpassing kindness, like the sun hidden away in the innermost sanctum to the omnipresent moon, for whom? For me, this dead dog! Above all, please return quickly to tell of your victories then.