As far as Martin [Luther] himself is concerned, O good God, what have we overlooked or not done? What fatherly charity have we omitted that we might call him back from such errors?
Pope Leo XThere are many, and there will be many, who will gladly purchase eternal life for a small price, if they see that others are fighting for God in earnest, rather than pretending to do so.
Pope Leo XNot the Christian religion only, but nature herself, cries out against the state of slavery.
Pope Leo XWe have devoted ourselves to the government and extension of the Church, and, among other objects, we have conceived it to be our duty to foster especially literature and the fine arts ... next to knowledge and true worship of the Creator, nothing is better or more useful to mankind than such studies.
Pope Leo XIt has always been the habit of Catholic in danger and in troublous times to fly for refuge to Mary, and to seek for peace in Her maternal goodness; showing that the Catholic Church has always, and with justice, put all her hope and trust in the Mother of God. And truly the Immaculate Virgin, chosen to be the Mother of God and thereby associated with Him in the work of man's salvation, has a favour and power with Her Son greater than any human or angelic creature has ever obtained, or ever can gain
Pope Leo X