0 Peace, the beautiful gift of God, the name of which, as St. Augustine says, is the sweetest word to our hearing and the best and most desirable possession ; peace, which was for more than four years implored by the ardent wishes of all good peoples, by the prayers of pious souls and the tears of mothers, begins at last to shine upon the nations. At this We are indeed the happiest of all, and heartily do We rejoice. But this joy of Our paternal heart is disturbed by many bitter anxieties, for if in most places peace is in some sort established and treaties signed, the germs of former enmities remain; and you well know, Venerable Brethren, that there can be no stable peace or lasting treaties, though made after long and difficult negotiations and duly signed, unless there be a return of mutual charity to appease hate and banish enmity. This, then, Venerable Brethren, is the anxious and dangerous question upon which we wish to dwell and to put forward recommendations to be brought home to your people.
Source: Pacem, Dei Munus Pulcherrimum (Vatican.va)