If you look back over history you can't help seeing that the only Christian body that was ever able to resist Erastianism on the one side and endless division on the other has been the Church built on Peter.

They began to see it nearly a hundred years ago in Russia and Greece.

Then the Emperor of Russia was secretly reconciled in 1930; and ten or twelve years later his people followed him." "Then there's no more dispute?
What about the _Filioque_ clause ?" "Why, when Peter is accepted, the rest follows." "Then you may say that the entire civilized world is represented in Rome to-day ?" "Certainly.

You'll see the princes in the procession." (II) An hour later they took their places at the central window of the long sala on the third floor, looking out immediately upon the narrow street, which, opposite, fell back into a tiny square, and further up to the right, upon the enormous piazza of St.Peter's and the basilica itself behind.
It was a real Roman day--not yet at its full heat, but intensely clear and bright; and Monsignor congratulated himself on having elected to remain as a spectator.

The return journey from the Lateran about noon would be something of an ordeal.
The street and the piazza presented an astonishingly brilliant appearance.