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St. Mark of Ephesus: The Latins are not only schismatics but heretics . . . - Orthodox Church Quotes
“The Latins are not only schismatics but heretics… we did not separate from them for any other reason other than the fact that they are heretics. This is precisely why we must not unite with them unless they dismiss the addition from the Creed filioque and confess the Creed as we do.” — St. Mark …