10 To this, as it were foreshadowed type of educating young men destined to sacred ends, it is Our desire and right that We should add what appertains to youth in general: for We are exceedingly anxious as to its education, that it should be rightly and very fully carried out, both as regards mental culture and training the disposition. The Church has always cherished the age of youth in her maternal embrace, for its guardianship she has most lovingly undertaken many labours and prepared many aids for it; among which is the foundation of many orders of religious men which might train young people in science and learning, and might especially inculcate Christian wisdom and virtue. Under such auspices it would come to pass that piety towards God would easily imbue their tender minds, after which the duty of man towards himself, his neighbour, and his country having been duly set before them, there is every hope that they would bring forth fruit in due season. There is therefore a just cause of grief to the Church when she sees her little ones torn away from her at the tenderest age and forced into schools where either the knowledge of God is passed over in silence, or but a maimed and perverted idea of it taught; where there is nothing to stem the torrent of error, no faith in divine revelation, no place where the truth may defend itself. But truly, to forbid the Catholic Church to use her influence in the abodes of science and literature, is most injurious, since the duty of teaching religion, that subject indeed, which no man careful of his eternal salvation can neglect, has been given by God to His Church, but to no other society of men has it been given, nor can any other association take it for itself, she therefore claims it as her undoubted right, and complains when it is neglected.
Source: Officio Sanctissimo (Vatican.va)