What did St. Pius X mean when he called Modernism “the synthesis of all heresies”?

This phrase – “the synthesis of all heresies” – shows up toward the end of the Encyclical Pascendi Dominici Gregis, placed in the context of a rhetorical question.[1] After an apology for taking so long to explore the entire scope … Continue reading What did St. Pius X mean when he called Modernism “the synthesis of all heresies”?