On 11 December 1925, Pope Pius XI promulgated his encyclical letter Quas primas, on the Kingship of Christ. The encyclical dealt with what the Pope described correctly as "the chief cause of the difficulties under which mankind was laboring." He explained that the manifold evils in the world are due to the fact that the majority of men have thrust Jesus Christ and His holy law out of their lives; that Our Lord and His holy law have no place either in private life or in politics; and, as long as individuals and states refuse to submit to the rule...