Now what we see in the sign-board we see also in the religion of the different churches, when a whole multitude, at one time, pass from one worship to another. Then, against their will, and perhaps without their knowing it, they never come into the pale of their new church empty-handed: they carry with them a number of ideas, and habits, and turns of thought, which they had found in their old worship. And thus, after a time, when the fervor of the early days is over, you find in the new religion, or new worship, a real palimpsest: the old one is reappearing under the new. That makes itself manifest in a good many ways; sometimes in ways the most strange and unexpected.
If you ask me, now, remembering this rule, what means the name, "Roman Catholic Church," I answer: Christianity absorbed into itself the Roman empire; the Roman empire became Christian in a very few years, with a most rapid, with a most admirable sway; souls became conquered in large numbers; they became Christian. But afterwards it appeared that they were not so perfectly unheathenized as they were thought to be, or as they thought themselves: many of their heathenish habits of life, thoughts, and customs remained even in their very worship. Thus, after Christianity had absorbed the Roman world, it appeared that the Roman world had penetrated and impregnated the whole of Christianity; and this is the Roman Catholic Church. She is Christian, but she is full of the errors and superstitions that belonged to the old Roman heathenish world.
To understand what this means we must now try to comprehend what the old Roman genius was. Here I ask you not to confound it with the Greek genius, which was in many respects highly superior, but which had, at that time, passed away in a large measure, and been replaced everywhere by the Roman genius. What were the especial traits of character of the Romans? The first, and a very striking one to those who have travelled and studied in those countries, is a most vivacious love for tradition. In Rome, at the present day, you find things that are done, that are said, that are believed, that are liked, because they were two thousand years ago, without the people themselves having a very clear notion of it. Their custom—and it is born in their flesh, and in their blood—is to look backwards, and to see in the past the motives and the precedents for their acts and for their belief. Of this I could quote to you a number of instances. I will choose but one. The first time I was in Rome I stopped, as every traveller does, on the Piazza del Popolo. In the midst of that square is an obelisk, and on one side of the pedestal of that obelisk is written: "This monument was brought to Rome by the High Pontiff, Cæsar Augustus." I went round the monument, and on the other face of the same pedestal I read: "This monument, brought to Rome by the High Pontiff, Cæsar Augustus, was placed in this square by the High Pontiff, Sextus V." And then I remembered that one of those High Pontiffs was a Roman heathen, an Emperor; and that the other was a Christian, was a priest, was a pope; and I was astonished, at first sight, to find on two faces of the same stone the same title given to those two representatives of very different religions. Afterwards, I observed that this was no extraordinary case, but that in many other places in Rome instances of the same kind were to be found. I inquired a little more deeply, perhaps, than some other travellers, into the meaning of those words. I asked myself why this pope, Sextus V., and this Emperor Augustus, should each be called "pontiff." What is the meaning of "pontiff"? "Pontiff" means bridge-maker, bridge-builder. Why are they called in that way? Here is the explanation of that fact. In the very first years of the existence of Rome, at a time of which we have a very fabulous history, and but few existing monuments,—the little town of Rome, not built on seven hills as is generally supposed; there are eleven of them now; then there were within the town less than seven even,—that little town had a great deal to fear from any enemy which should take one of the hills that were out of town, the Janiculum, because the Janiculum is higher than the others, and from that hill an enemy could very easily throw stones, fire, or any means of destruction, into the town. The Janiculum was separated from the town by the Tiber. Then the first necessity for the defence of that little town of Rome was to have a bridge. They had built a wooden bridge over the Tiber, and a great point of interest to the town was that this bridge should be kept always in good order, so that at any moment troops could pass over it. Then, with the special genius of the Romans, of which we have other instances, they ordained, curiously enough, that the men who were a corporation to take care of that bridge should be sacred; that their function, necessary to the defence of the town, should be considered holy; that they should be priests, and the highest of them was called "the high bridge-maker." So it happened that there was in Rome a corporation of bridge-makers, pontifices, of whom the head was the most sacred of all Romans, because in those days his life, and the life of his companions, was deemed necessary to the safety of the town. Things changed; very soon Rome was large enough not to care about the Janiculum; very soon Rome conquered a part of Italy, then the whole of Italy, and finally almost the whole of the world. But when once something is done in Rome, it remains done; when once a thing is said, it remains said, and is repeated; and thus it happened that the privilege of the bridge-makers' corporation, as beings sacred and holy, remained; and that privilege made everybody respect them; gave them a sort of moral power. Then kings wanted to be made High Bridge-makers; after kings, consuls; later, dictators; and, later, emperors themselves made themselves High Bridge-makers, which meant the most sacred persons in the town.
When Constantine, who is generally called the first Christian emperor,—but who was very far from being a real Christian,—when Constantine became nominally a Christian, he did not leave off being the high bridge-maker of the heathen. He remained high priest of the heathen at the same time he was a Christian emperor; and he found means, as well as his son after him, to keep the two functions. He acted on some occasions as high pontiff of the heathen; on other occasions, he called councils, presided over them, and sent them away when he had had enough of their presence; declared to the bishops that he was in some sense one of them, and acted to all intents and purposes as popes have acted after him. Thus that title remained the type of whatever was most sacred in Rome; and the bishop of Rome, when an opportunity came,—when the title had been lost in Rome by emperors,—took it up again. And thus we see on the same stone, at the present time in Rome, the name of a high bridge-maker who is a heathen emperor, and the name of a high bridge-maker who is a pope, who is the head of the Christian Catholic Church. Thus you see an old superstition, an old local superstition, established with a political meaning, has survived itself, has survived centuries, has survived the downfall of heathenism, and is at the present time flourishing. You all know that the present pope is called