John, we've been over this here multiple times over the years. There are page after page of these sorts of quotes from the 1st thousand years of the Church's existence. There are also page after age of quotes from hierarchs who excoriated the the bishop of Rome for presumption. The fact is that no pre-schism pope claimed universal jurisdiction over the whole Church to appoint and remove prelates and priests. No pre-schism pope claimed infallibility. Indeed, there were popes who condemned those ideas. What was going on in the West, however, lead to the Great Schism and things like the Dictatus Papae and frankly it was all downhill after that.
The Eastern Rite bishops in communion with Rome, at least some of them, are even today challenging the power of the Pope to tell them what to do and this has been going on for some time. The Melkites, for example, gave only qualified assent to the Infallibility decree of Vatican I.
I think you will find that the greatest hurdle to union between East and West are the claims of the Papacy to extraordinary authority over the whole Church. The theological disagreements are mostly about words and focus, the result of two different ways of doing theology, and have been and are being dealt with. The interview with Met. John Zizoulis, the representative of the EP to the Synod lays out the Orthodox position clearly. If you haven't read it, I urge you to do so. The Orthodox hierarchs and the Latin ones understand that the role of the Petrine Ministry is the problem. That's why the reinstituted dialogue between the Churches will be dealing with that very issue.
I know. I am sure my Melkite pastor excommunicated himself when he gave a sermon saying "We don't believe in the pope's universal jurisdiction."
I posted those quotes to try to get a discussion going on where they properly fit within the pheroma of Orthodoxy, not to get a polemic going.