In Plurimis §22

²² To each one of these, whether they have already been made free or are about to become so, We address with a pastoral intention and fatherly mind a few salutary cautions culled from the words of the great Apostle of the Gentiles. Let them, then, endeavor piously and constantly to retain grateful memory and feeling towards those by whose council and exertion they were set at liberty. Let them never show themselves unworthy of so great a gift nor ever confound liberty with licence; but let them use it as becomes well ordered citizens for the industry of an active life, for the benefit and advantage both of their family and of the State. To respect and increase the dignity of their princes, to obey the magistrates, to be obedient to the laws, these and similar duties let them diligently fulfill, under the influence, not so much of fear as of religion; let them also restrain and keep in subjection envy of another's wealth or position, which unfortunately daily distresses so many of those in inferior positions, and present so many incitements of rebellion against security of order and peace. Content with their state and lot, let them think nothing dearer, let them desire nothing more ardently than the good things of the heavenly kingdom by whose grace they have been brought to the light and redeemed by Christ; let them feel piously towards God who is their Lord and Liberator; let them love Him, with all their power; let them keep His commandments with all their might; let them rejoice in being sons of His spouse, the Holy Church; let them labor to be as good as possible, and as much as they can let them carefully return His love. Do you also, Venerable Brethren, be constant in showing and urging on the freedmen these same doctrines; that, that which is Our chief prayer, and at the same time ought to be yours and that of all good people, religion, amongst the first, may ever feel that she has gained the most ample fruits of that liberty which has been obtained wherever that empire extends.