At the head of the priests, your collaborators, and of your faithful, work ardently and incessantly for the safeguarding and the holiness of marriage, so that it may always be lived in its entire human and Christian fullness. Consider this mission as one of your most urgent responsibilities at the present time.

As you know, it implies concerted pastoral action in all the fields of human activity, economic, cultural and social; for, in fact, only a simultaneous improvement in these various sectors will make it possible to render the life of parents and of children within their families not only tolerable, but easier and more joyous, to render the living together in human society more fraternal and peaceful, in faithfulness to God's design for the world. 

Final Appeal

31. Venerable brothers, most beloved sons, and all men of good will, great indeed is the work of education, of progress and of love to which we call you, upon the foundation of the Church's teaching, of which the successor of Peter is, together with his brothers in the episcopate, the depositary and interpreter. Truly a great work, as we are deeply convinced, both for the world and for the Church, since man cannot find true happiness-towards which he aspires with all his being-other than in respect of the laws written by God in his very nature, laws which he must observe with intelligence and love. Upon this work, and upon all of you, and especially upon married couples, we invoke the abundant graces of the God of holiness and mercy, and in pledge thereof we impart to you all our apostolic blessing.

Given at Rome, from St. Peter's, this 25th day of July, feast of St. James the Apostle, in the year 1968, the sixth of our pontificate.