Establishing universal peace

Peace on earth, which all men of every era have most eagerly yearned for, can be firmly established only if the order laid down by God be dutifully observed. In fact, there can be no peace between men unless there is peace within each one of them, unless, that is, each one builds up within himself the order wished by God. Hence St. Augustine asks: "Does your soul desire to overcome your lower inclinations? Let it be subject to Him Who is on high and it will conquer the lower self: there will be peace in you; true, secure and well-ordered peace. In what does that order consist? God commands the soul; the soul commands the body; and there is nothing more orderly than this." (Papal Encyclical, Pacem in Terris, 11 April 1963)