A Treatise Against Eutyches and Nestorius

I have been long and anxiously waiting for you to discuss with me the problem which was raised at the meeting. But since your duties have prevented your coming and I shall be for some time involved in my business engagements, I am setting down in writing what I had been keeping to say by word of mouth.

You no doubt remember how, when the letter a was read in the assembly, it was asserted that the Eutychians confess that Christ is formed from two natures but does not consist of them—whereas Catholics admit both propositions, for among followers of the true Faith He is equally believed to be of two natures and in two natures. Struck by the novelty of this assertion I began to inquire what difference there can be between unions formed from two natures and unions which consist in two natures, for the point which the bishop who wrote the letter refused to pass over because of its gravity, seemed to me of importance and not one to be idly and carelessly slurred over. On that occasion all loudly protested that the difference was evident, that there was no obscurity, eon-fusion or perplexity, and in the general storm and tumult there was no one who really touched the edge of the problem, much less anyone who solved it.