15 The peace for which humanity cries out is not that which the laborious treaty-making of human prudence can decree, but that which Christ brought by its message: "My peace I bring you; I do not give it as the world gives it." ( John xiv: 27). The accords between State and State or between class and class which men have been able to shadow forth will not be durable, and will not have the force of true peace except on condition that they are founded on the pacification of hearts; and that itself is only possible if duty has bridled the passions whence all conflicts spring. "Whence comes," asks the Apostle James," wars and quarrels amongst you? Is it not from your passions, which combat in your members?" ( James iv.: 1.) Now to regulate wisely all the movements inherent to nature in such a way as to make man the master, not the slave, of his passions, submissive himself, and docile to the divine will, the hierarchy, which is at the base of universal peace, that belongs to Christ, and its action manifests a marvelous efficacy in the family of Franciscan Tertiaries.
Source: Sacra Propediem (Vatican.va)