In the Limited Collector's Edition of the game, there is the special booklet called "Conversations From The Universe". In the booklet on page 7, there is an extremely difficult to read text from the Prophet of Truth to the Prophet of Mercy concerning the Prophet of Regret. The following is the translation (the number of words in each line is equal to the number of words in each line in the booklet, except for the words in parentheses):
To thine own eyes, Prophet of Mercy
Dearest Brother,
I hope this finds you well. My sorrow and anger precedes me with regard to the atrocity and heresy at Halo. We shall avenge this destruction with some of our own. Work proceeds apace on our battle plan. The Sangheili (Elites) will do what is asked of them, and the Jiralhanae (Brutes) will show the humans what our strength looks like at close quarters.
But this message concerns neither the planning nor the discovery of the Human homeworld. Rather I question Brother Regret's suitability for this great purpose.
I am aware of his tenacity and ambition, but I believe his youth and reckless reaching may prove to be grave risks to the perfection of this undertaking. You have noted his rashness in the past, and yet neither of us has acted.
I suggest that we continue as planned, but we would both do well to pay mind to Brother Regret, and provide wisdom and guidance as needed. This matter is too important to be left to inexperienced hands. Piety is no substitute for wisdom.
Perhaps I worry too much. You know that I embrace caution, but cannot have inexperience or arrogance at this great juncture.
Be pure, be vigilant, and never rest.
By my own hand
Prophet of Truth
