83 Meanwhile, confident that the active will of all Catholics will respond to these Our exhortations to such a degree that, with the help of divine grace, these missionary endeavors will be able to carry to the very ends of the earth the light of Christian faith and virtue together with advances in material civilization, We lovingly impart to all of you, Venerable Brethren, to your flocks, and specifically to all the preachers of the Gospel, who are so near to Our heart, the Apostolic Blessing as a testimony of Our good will and a pledge of heavenly gifts.
Source: Fidei Donum (Vatican.va)