9 The second cause of the general unrest we declare to be the absence of respect for the authority of those who exercise ruling powers. Ever since the source of human powers has been sought apart from God the Creator and Ruler of the Universe, in the free will of men, the bonds of duty, which should exist between superior and inferior, have been so weakened as almost to have ceased to exist. The unrestrained striving after independence, together with over-weening pride, has little by little found its way everywhere; it has not even spared the home, although the natural origin of the ruling power in the family is as clear as the noonday sun; nay, more deplorable still, it has not stopped at the steps of the sanctuary. Hence come contempt for laws, insubordination of the masses, wanton criticism of orders issued, hence innumerable ways of undermining authority; hence, too, the terrible crimes of men who, claiming to be bound by no laws, do not hesitate to attack the property or the lives of their fellow men.
Source: Ad Beatissimi Apostolorum (Vatican.va)