28 Their object in uttering this cry is to be able to violate unpunished their plighted faith, and in all things to have unchecked control. And as the Church, unable to abandon her chiefest and most sacred duties, cannot patiently put up with this, and asks that the pledge given to her be fully and scrupulously acted up to, contentions frequently arise between the ecclesiastical and the civil power, of which the issue commonly is that the weaker power yields to the one which is stronger in human resources.
Source: Immortale Dei (Vatican.va)