How is it private judgment to insist on the same teachings which have been taught by all the saints and popes and councils of the past two thousand years, rather than the modernist novelties now in vogue? Paul VI's unambiguous Credo of the people of God (below), together with his courageous encyclical, Humanae Vitae, provide the hermeneutical key to interpreting the documents of Vatican II. The liberals have never forgiven him for issuing either, since both preemptively undermine their "spirit" of Vatican II in favor of the Council's actual texts, which presuppose all of Catholic Tradition with respect to both theology and morals, and most specifically, according to John XXIII's opening address at the Council, the teachings of the Council of Trent and Vatican I.
Credo of the People of God
There is no liberal statement in any document of Vatican II that cannot be refuted by a conservative statement in another document of Vatican II. The Council is characterized by ambiguity and imprecision. That is the essential problem. Vatican II is whatever anybody says it is. The mess we are living through is the logical consequence of so much hot air.