27 But once holy religion is rejected, once the Divine Majesty, establishing what is good and evil, is ignored, it is plain that laws and public authority have little or no value. Then again, once hope and expectation of eternal reward are lost through these fallacious doctrines, men will greedily and without restraint seek the things of earth, vehemently covet their neighbor's goods, and even take them by force as often as occasion or opportunity is given. Hence hatred, envy, discord and rivalries arise among men; hence public and private life is perturbed; hence the very foundations of society which can scarcely be held together and maintained by the authority of government are gradually undermined; hence, deformation of morals by evil theatrical performances, books, periodicals and actual crime.
Source: Fulgens Corona (Vatican.va)