The apostolic constitution on the promotion of the study of Latin, signed on the feast of the Chair of Saint Peter a few months before the Second Vatican Council opened. John XXIII recalls that the wisdom of the ancient world came to the Church largely through Greek and Latin, and that Latin in particular became the Church's own tongue: universal, so that pastors of every nation can speak to one another and to the Holy See; unchanging, so that the terms in which the faith is defined keep their exact sense; and dignified, raised above the daily speech of any one people. He therefore lays down that bishops and religious superiors take care that no one write against the use of Latin, that candidates for the priesthood be thoroughly trained in it before their higher studies, that the major sacred sciences be taught in Latin from Latin textbooks, and that an institute be established for its teaching. The Holy See publishes the text in Latin.