3 To form such helpers for yourselves, Venerable Brothers, is your task. Indeed experience teaches that future priests will be the kind you have taken care to form. You have the place, the sacred seminaries, where you can train ministers to your and the Church's desires as approved by God, workmen who have no need to be ashamed.(5) The very name seminary tells for what great purpose they have been erected. Therefore encourage the growth and prosperity of the ecclesiastical seminaries which you already have, both in the study of sacred learning and also in the training of souls. To ensure that this training proceeds properly, the best teachers are needed; they must not only be endowed with sound learning, but they must also teach that doctrine agreeably and faithfully according to Our precepts. In order that the young clergy become imbued with the true spirit of the Church and that they cultivate virtue, spiritual guides are to be chosen carefully. Moreover their work is to be aided and perfected with all the solicitude of your labors. But in dioceses where there are as yet no seminaries, let the bishops use every means to establish excellent ones as soon as possible. The Council of Trent has overseen this, and We have also considered it in Our apostolic letter of April 27, 1892. The freedom of education which now prevails in your country gives you greater facility to do what We have recommended with regard to the arrangement of studies. - For this purpose you also have a great aid in the college for clerics which Pius IX labored to established for the convenience of South America and which We too have promoted and favored. Its outcome happily fulfills Our expectations. We joyfully recall that many of you have been graduated from this college. We encourage you to send young men of special promise to Rome for their studies, and you should use them appropriately afterwards as teachers or for any other purpose.
Source: Litteras a Vobis (Vatican.va)