To the humanistic curriculum by which youths are educated must be added sacred and canonical studies. In these institutions take care that the men appointed as teachers be men of sound doctrine and good morals, men to whom you can entrust a matter of such great importance. Choose rectors and spiritual directors who are outstanding for prudence, counsel, and experience. Moreover your vigilance for your priests must be great and even singular, so that the smaller the number of workers, the greater their zeal in cultivating the vineyard of the Lord. It is marvelous how fruitful the future work of the clergy will be in instructing the people, but especially the youth, when that work is crowned with dignity and zeal.
Good example is the best means of cultivating in men the love of virtue.
For this reason let all priests take care not only that nothing is noted in them which is at variance with their office and the rules of their state, but also that the holiness of their lives and morals may shine forth, like a lamp on a lampstand, giving light to all in the house. A third problem which should engage your continuous care concerns the printed material that is published either daily or at stated intervals. Given these facts it is impossible to estimate how much harm is done to good morals, what destruction daily threatens the integrity of religion. Therefore by exhortation, by admonition. Now an admonition for authors who by an honest and holy determination combine the love of writing with a love and zeal for the Catholic cause.