Vatican I Quotes

“unlike previous councils that had to deal with one or two specific heresies, this council had to face a more comprehensive problem: the very foundations of faith had been shaken and put into mortal jeopardy. Rationalism, materialism, religious indifference, and, most generally, denial of the spiritual dimension of human life figured large in the problems to be dealt with.”
― John W. O'Malley, Vatican I: The Council and the Making of the Ultramontane Church