32 Whence it appears how urgent is the duty to maintain perfect union of minds, especially at these our times, when the Christian name is assailed with designs so concerted and subtle. All who have it at heart to attach themselves earnestly to the Church, which is "the pillar and ground of the truth,"(29) will easily steer clear of masters who are "lying and promising them liberty, when they themselves are slaves of corruption."(30) Nay, more, having made themselves sharers in the divine virtue which resides in the Church, they will triumph over the craft of their adversaries by wisdom, and over their violence by courage. This is not now the time and place to inquire whether and how far the inertness and internal dissensions of Catholics have contributed to the present condition of things; but it is certain at least that the perverse-minded would exhibit less boldness, and would not have brought about such an accumulation of ills, if the faith "which worketh by charity"(31) had been generally more energetic and lively in the souls of men, and had there not been so universal a drifting away from the divinely established rule of morality throughout Christianity. May at least the lessons afforded by the memory of the past have the good result of leading to a wiser mode of acting in the future.
Source: Sapientiae Christianae (Vatican.va)