St. Pius X Encyclical E Supremi, October 4, 1903: Do not then pay heed to private interests of any kind, but have at heart only God and the Church and the eternal welfare of souls so that, as the Apostles admonishes, "you may not be partakers in the sins of others." (I Timothy 5:22)

St. Pius X Encyclical Editae Saepe, May 26, 1910: Today this modern apostasy stirs up hatred between the poor and the rich until, dissatisfied with their station, they gradually fall into such wretched ways that they must pay the find imposed on those who, absorbed in worldly, temporal things, forget "the kingdom of God and His justice." As a matter of fact, this present conflict is even more serious than the others. Although the wild innovators of former times generally preserved some fragments of the treasury of revealed doctrine, these moderns act as if they will not rest until they completely destroy it. When the foundations of religion are overthrown, the restraints of civil society are also necessarily shattered. Behold the sad spectacle of our times! Behold the impending danger of the future! However, it is no danger to the Church, for the divine promise leaves no room for doubt. Rather, this revolution threatens the family and nations, especially those who actively stir up or indifferently tolerate this unhealthy atmosphere of irreligion.