28 The meekness of St. Francis should be held up to the faithful in a very special way for their imitation, for this virtue recalls to our minds so well and expresses so truly the kindness of Jesus Christ. It possesses, too, in a remarkable degree the power to bind souls one to another. This virtue, wherever it is practiced among men, tends primarily to settle the differences both public and private which so often separate us. Likewise can we not hope that, through the practice of this virtue which we rightly call the external sign of the inner possession of divine love, there will result perfect peace and concord both in family life and among nations?
Source: Rerum Omnium Perturbationem (Vatican.va)