27 Our predecessor Benedict XV, as We mentioned above, stressed particularly the necessity of a scholarly, intensive, and adequate formation of the native clergy, which must be equal to current circumstances. Undoubtedly he was aware of another need, equally important: the need to educate and indoctrinate the laity of each nation in such a way that they will not only be worthy of their Christian calling in their private lives, but will also engage in active apostolic work. Our immediate predecessor Pius XII dealt with the subject well and significantly, (48) and recommended again and again that today this cause be attended to with great fervor and be carried out to the greatest degree and as soon as possible.
Source: Princeps Pastorum (Vatican.va)