The salient point of this Council is not, therefore, a discussion of one article or another of the fundamental doctrine of the Church which has repeatedly been taught by the Fathers and by ancient and modern theologians, and which is presumed to be well known and familiar to all. For this a Council was not necessary. But from the renewed, serene, and tranquil adherence to all the teaching of the Church in its entirety and preciseness, as it still shines forth in the Acts of the Council of Trent and First Vatican Council, the Christian, Catholic, and apostolic spirit of the whole world expects a step forward toward a doctrinal penetration and a formation of consciousness in faithful and perfect conformity to the authentic doctrine, which, however, should be studied and expounded through the methods of research and through the literary forms of modern thought. (Bl. John XXIII: Opening Speech of Second Vatican Council)
Funeral of Bl. John XXIII
(French Video of Vatican II)