The errors appear in many forms and the enticements of vice wear different dresses. Both cause many even among our own ranks to be ensnared, seducing them by the appearance of novelty and doctrine, or the illusion that the Church will accept the maxims of the age. Venerable Brethren, you are well aware that we must vigorously resist and repel the enemy's attacks with the very weapons Borromeo used in his day.
In hoc tam nefario stultoque bello, cui commovendo dilatando socii et adiutores potentes accedunt interdum vel ipsi, qui Nobiscum facere Nostrasque tueri res deberent prae ceteris; in forma errorum adeo multiplici vitiorumque illecebris tam variis, quibus utrisque haud pauci etiam e nostris blandiuntur, capti specie novitatis ac doctrinae, aut inani spe ducti, Ecclesiam posse cum aevi placitis amice componi, plane intelligitis, Venerabiles Fratres, nobis esse strenue obsistendum, iisdemque nunc armis excipiendum impetum hostium, quibus olim usus est Borromeus.vatican.va vatican.va