0 To Our Venerable Brethren the Patriarchs, Primates, Archbishops, Bishops, and other Ordinaries, having Peace and Communion with the Apostolic See. Venerable Brethren, Greeting and Apostolic Benediction. The sacred joy which it has been given to Us to feel in attaining the fiftieth anniversary of Our Episcopal Consecration has been deepened by the knowledge that it was shared by the people of the whole Catholic world, and that as a father in the midst of his children We have been consoled by the touching testimonies of their loyalty and love. We gratefully accept it and record it as a fresh proof of God's special providence, and one which is markedly full of bounty to Ourselves, and of blessing to the Church.
Source: Laetitiae Sanctae (Vatican.va)