Pope Callixtus III

"We ratify the law, but we condemn your interpretation, for He of whom ye say that He will come—our Lord Jesus Christ—has come, as the Church teaches us and preaches."

"I, Pope Calixtus, vow to Almighty God and the Holy Trinity that by war, maledictions, interdicts, excommunications, and all other means in my power, I will pursue the Turks, the most cruel foes of the Christian name."

"I, Pope Calixtus III, promise and vow to the Holy Trinity, Father, Son, and Holy Ghost, to the Ever-Virgin Mother of God, to the Holy Apostles Peter and Paul, and to all the heavenly host, that I will do everything in my power, even, if need be, with the sacrifice of my life, aided by the counsel of my worthy brethren, to reconquer Constantinople, which in punishment for the sin of man has been taken and ruined by Mahomet II, the son of the devil and the enemy of our Crucified Redeemer. Further, I vow to deliver the Christians languishing in slavery, to exalt the true Faith and to extirpate the diabolical sect of the reprobate and faithless Mahomet in the East. For there the light of Faith is almost completely extinguished. If I forget thee, O Jerusalem, let my right hand be forgotten. Let my tongue cleave to my jaws, if I do not remember thee. If I make not Jerusalem the beginning of my joy, God and His holy Gospel help me. Amen."

"Nothing will induce me to leave Rome, not even if, like so many others, I am to fall a victim to the plague. Mahomet, the enemy of our faith, compels me to remain. He does not relax his efforts, although thousands in his immense army have been carried off."

"The Christian who does not now render assistance in following up the victory God has granted proves himself unworthy of divine favours."

"Woe, woe to those, whoever they may be, who hinder the cause of the crusade!"

"Away, away with these things! take them for the Turks! Earthenware will do quite as well for me!"

"I have been chosen for the destruction of the enemies of the Faith."

"Beloved son! continue to defend the Catholic Faith; God, for whom you fight, will not abandon His cause. He will, I am confident, grant success against the Turks and the other unbelievers to you and the rest of the Christians with great glory and honour."

"Only cowards fear danger; the palm of glory grows nowhere but on the battle-field."

"The Pope speaks and thinks of nothing but the crusade."

"Whatever was achieved against the Turks was entirely the Pope's doings, and the great deliverance wrought at Belgrade is to be ascribed most properly to him."

"Except for his nepotism, Calixtus III deserves high praise, more especially for the energy, constancy and purpose which he displayed in dealing with the burning question of the day—the protection of Western civilization from the Turkish power. In this matter he gave a grand example to Christendom, and it is to be observed that in the midst of the military and political interest which claimed so large a share of his time and attention, he did not neglect the internal affairs of the Church, and vigorously opposed heresies."