8 Would that this healing authority had never been slighted or set aside! Assuredly, neither would the civil power have lost that venerable and sacred glory, the lustrous gift of religion, which alone renders the state of subjection noble and worthy of man; nor would so many revolutions and wars have been fomented to ravage the world with desolation and bloodshed; nor would kingdoms, once so flourishing, but now fallen from the height of prosperity, lie crushed beneath the weight of every kind of calamity. Of this the peoples of the East also furnish an example, who, by breaking the most sweet yoke that bound them to this apostolic see, forfeited the splendor of their former greatness, their renown in science and art, and the dignity of their sway.
Source: Inscrutabili Dei Consilio (Vatican.va)