"These latter days have witnessed a notable increase in the number of the enemies of the Cross of Christ, who, by arts entirely new and full of deceit, are striving to destroy the vital energy of the Church, and, as far as in them lies, utterly to subvert the very Kingdom of Christ."

― Pope Saint Pius X, Pascendi Dominici Gregis
(On the doctrines of the Modernists, 1907)