"If anyone says that a human being [himself] cannot be divinely elevated to a knowledge and perfection which exceeds the natural, but of himself can and must reach finally the possession of all truth and goodness by continual development: let him be anathema." *
"Therefore, faithfully adhering to the tradition received from the beginning of the Christian faith, to the glory of God our savior, for the exaltation of the Catholic religion and for the salvation of the Christian people, with the approval of the Sacred Council, we teach and define as a divinely revealed dogma that when the Roman Pontiff speaks EX CATHEDRA, that is, when, in the exercise of his office as shepherd and teacher of all Christians, in virtue of his supreme apostolic authority, he defines a doctrine concerning faith or morals to be held by the whole Church, he possesses, by the divine assistance promised to him in blessed Peter, that infallibility which the divine Redeemer willed his Church to enjoy in defining doctrine concerning faith or morals [which neatly covers every conceivable condition]. Therefore, such definitions of the Roman Pontiff are of themselves, and not by the consent of the Church, irreformable.
"So then, should anyone, which God forbid, have the temerity to reject this definition of ours: let him be anathema." **
"In passing this sentence, the pontiff is vested in amice, stole, and a violet cope, wearing his mitre, and assisted by twelve priests clad in their surplices and holding lighted candles. He takes his seat in front of the altar or in some other suitable place, amid pronounces the formula of anathema which ends with these words: "Wherefore in the name of God the All-powerful, Father, Son, and Holy Ghost, of the Blessed Peter, Prince of the Apostles, and of all the saints, in virtue of the power which has been given us of binding and loosing in Heaven and on earth, we deprive ....... himself and all his accomplices and all his abettors of the Communion of the Body and Blood of Our Lord, we separate him from the society of all Christians, we exclude him from the bosom of our Holy Mother the Church in Heaven and on earth, we declare him excommunicated and anathematized and we judge him condemned to eternal fire with Satan and his angels and all the reprobate, so long as he will not burst the fetters of the demon, do penance and satisfy the Church; we deliver him to Satan to mortify his body, that his soul may be saved on the day of judgment." Whereupon all the assistants respond: "Fiat, fiat, fiat."
Notwithstanding all his desperate attempts, the Pope did not succeed in saving his papal territories but he may just have succeeded in saving his own life. We will never know.