"The Catholic knows that he or she may not dissent from teaching proposed as infallible. With regard to such teaching one may seek only to understand, to appreciate, to deepen one’s insights. In the presence of other authoritative teaching, exercised either by the Holy Father or by the collectivity of the bishops one must listen with respect, with openness and with the firm conviction that a personal opinion, or even the opinion of a number of theologians, ranks very much below the level of such teaching. The attitude must be one of desire to assent, a respectful acceptance of truth which bears the seal of God’s Church."