It is only when we realise these things that we can understand how it was possible that the most learned scholars at the close of the republic were so desperately ignorant concerning old Roman religion. In regard to many of the old Roman gods they know absolutely nothing, and try to disguise their ignorance behind a show of learning based on etymological sleight-of-hand; in regard to the rest their information is so tangled with Greek ideas that it is often almost impossible to unravel the mass and separate the old from the new. This unravelling has been the tedious occupation of the last half century in the study of Roman religion; and so patiently and successfully has it been accomplished that, although we would give almost anything for a few books of Varro's Divine Antiquities, it is tolerably certain that the possession of these books would not change in the least the fundamental concepts underlying the modern reconstruction of ancient Roman religion; though it is equally certain that these books would emphasise just so much more strongly, what we already realise, that this modern reconstruction is in distinct contradiction to many of Varro's favourite theories. It is an accomplishment of which History may well be modestly proud, that modern scholars have been able to eliminate, to a large degree, the personal equation and the myopic effects of his own time from the statements of the greatest scholar of Roman antiquity, and thus though handicapped by the possession of merely a small percentage of the facts which Varro knew, to arrive at a concept of the whole matter infinitely more correct than that which his books contained.
During this second century before Christ, therefore, the state religion was apparently unchanged so far as the outward form was concerned. The terminology and the ceremonies were much the same as before, but the content was quite different: Greek gods and Greek ideas had displaced Roman gods and Roman ideas, and the official representatives of religion, the state priests, were carrying the whole burden of worship on their own shoulders, because popular interest had been in the main deflected and was working along other lines. These lines of rival interest were superstition and scepticism, phenomena which at first sight appear as distinct opposites, but which are on the contrary very closely akin, so that they usually occur together not only in the same age, but frequently even in the same individual. They are purely relative terms, and the essence of superstition consists in its surplus element, just as the essence of scepticism lies in its deficiency. No religion judged from the standpoint of the worshipper can properly be called a superstition, but if once we can establish the essential things in a religion, then any large addition to those essential things savours of superstition. Speaking with historical sympathy we have no right therefore to designate early Roman religion as a superstition—it may of course be relatively so in comparison with other religious forms—but once we have established the essential elements in that early religion, we may consider the introduction of new and entirely different elements as superstition. The old religion of Rome consisted in the exact and scrupulous fulfilment of a large number of minute ceremonials. The result of this careful fulfilment of ritual was that the powers around man did him no harm but rather good, and that was the end of the whole matter. Religion did not command or even permit special inquiries into these powers; it was not only not man's duty to try to know the gods, it was his positive duty to try not to. Through the influence of Greece there had now come into Rome an altogether new idea, nourished largely by the Sibylline books, and represented most fully in the Magna Mater, the idea of the perpetual service of a god, a consecration to him, to the exclusion of all other things, and a life given over to the orgiastic performance of cult acts, which produced a state of ecstasy and consequently a communion with the deity. Along with this there went a belief in the possibility, by means of certain books and certain men, of obtaining from the gods a knowledge of the future. It is these surplus beliefs, quite contrary to the spirit of old Roman religion, which may justly be called superstition.
The Sibylline books had aroused these feelings, a knowledge of the oracle at Delphi had increased them, the rites of Aesculapius had carried them farther, but it was not until the Magna Mater came that they seem to have burst forth in any large degree. But aside from the rapid growth of the Magna Mater cult itself we have in this second century two instances of this tendency. The first was connected with the god Dionysos-Liber, innocent enough at his first reception in B.C. 493, in the company of Demeter-Ceres and Kore-Libera. To be sure the state had introduced him merely as the god of wine, but the mystery element in Dionysos took firm hold on private worship, and the Bacchanalian clubs or societies began to spread over Italy. In the course of about three centuries they had become a formidable menace to the morals and even the physical security of the inhabitants of Rome. Their meetings instead of occurring three times a year took place five times a month, and finally in B.C. 186 the famous Bacchanalian trial took place, of which Livy (Bk. xxxix.) gives such a graphic account, and to which a copy of the inscription of the decree of the Senate, preserved to our day, gives such eloquent testimony, providing as it does severe penalties for subsequent offenders, and recognising on the other hand large liberty of conscience.
The same love of mystery and longing for knowledge which produced the Bacchanalian clubs accorded a warm reception to astrology and made men listen with eagerness to those who could tell their fortunes or guide their lives by means of the stars. We do not know when the bearers of this knowledge first arrived in Rome, but Cato, in his Farm Almanac, our earliest piece of prose literature, in giving rules for the behaviour of the farm bailiff especially enjoins the intending landowner that his bailiff should not be given to the consultation of Chaldaean astrologers. Within half a century the problem of the Chaldaeans grew so serious that state interference was necessary, and in B.C. 139 the praetor Cn. Cornelius Hispalus issued an edict ordering the Chaldaeans to leave Rome and Italy within ten days.
The same age which produced this growth of superstition brought also the antidote for it in the shape of a sceptical philosophy, but the only trouble was that this philosophy not only cured superstition but in doing so killed the genuine religious spirit underlying it. It cast out, to be sure, the seven devils of superstition, but when men returned to themselves again, they found their whole spiritual house swept and garnished. With the death of the direct pupils of Aristotle, the Greek mind had thought out all the problems of philosophy of which man at that time was able to conceive. The following generations of philosophers devoted themselves either to the elaboration of detail or to a renewed examination of the foundations of belief, with the result that their smaller minds came to smaller conclusions, and the end of their investigations was one increased scepticism. The schools of the day showed many slight variations and bore many different names, but they all agreed in being more or less pervaded by a sceptical spirit, and by accenting ethics as against metaphysics, though they defined ethics very differently according to their starting point.
One of the earliest philosophical influences which reached Rome was however that of a pre-Socratic school, the school of Pythagoras. This was natural enough in itself, as the headquarters of the school was in Southern Italy, but it is curious and significant that the first pronounced instance of its influence occurred shortly after the Second Punic War, and in connexion with a clever fraud which was perpetrated with a view to influencing religion. In the year B.C. 181 a certain man reported that when he was ploughing his field, which lay on the other side of the Tiber, at the foot of the Janiculum, the plough had laid bare two stone sarcophagi, stoutly sealed with lead, and bearing inscriptions in Greek and Latin according to which they purported to contain, one of them the body of King Numa, the other, his writings. When they were opened the one which ought to have contained the body was empty, in the other lay two rolls, each roll consisting of seven books; the one set of seven was written in Latin and treated of pontifical law, the other consisted of philosophical writings. They were examined, found to be heretical and subversive to true religion, and were accordingly burned in the Comitium. The connexion of Numa and Pythagoras, historically impossible but believed in at this time, makes it practically certain that this was a clever attempt to introduce the philosophy of Pythagoras into Rome under the holy sanction of the name of Numa. Fortunately the zeal of the city praetor frustrated the scheme. But the doctrines of philosophy, which thus failed to enter by the door of religion, found the door of literature wide open for them. As the irony of fate would have it, Cato, the stalwart enemy of Greek influence, had brought back from Sardinia with him the poet Ennius, and at about the time when the false books of Numa were burning in the Comitium Ennius was giving to the world a Latin translation of the Sacred History of the Greek Euhemerus. This Euhemerus, a Sicilian who had lived about a century before this time, earned his title to fame by writing a novel of adventure and travel, in which he described a trip which he had taken in the Red Sea along the coast of Arabia to the wonderful island of Panchaia, where he found a column with an inscription on it telling the life history of Ouranos, Kronos, and Zeus, who were thus shown to have been historical characters afterwards elevated into deities. It was this theological element in his book which made him famous. This theory of the historical origin of the gods is even to-day called Euhemerism, and has exerted a baleful influence over writers on mythology from its author's day down to our own. These then were the doctrines which Ennius presented to the Romans in their own tongue, and it is pathetic to realise that his Sacred History formed the first formal treatise on theology which Rome ever possessed. Born under such an evil star, it is small wonder that her theological speculations never reached great metaphysical heights.
In these days it seemed to the Senate that the question of philosophy was beginning to be so serious that it might be considered as a public danger, and that it was therefore their duty to try to cope with it. They chose, of course, the typical Roman method of dealing with such matters, and the philosophers were expelled from Rome. At first in B.C. 173 it was only the Epicureans who were sent out, but in B.C. 161 the edict was broadened to include philosophers in general. However six years later, in B.C. 155, there came to Rome an embassy of philosophers whose mission was avowedly political and not philosophical, and who thus could not be excluded, while at the same time they took occasion to preach their philosophical doctrines. It was fortunate for Rome that Stoicism, the best among all these philosophies, appealed to her most strongly and became thus the national philosophy of Rome. Stoicism was in many respects quite as sceptical as the others, but it had at least this great advantage that it laid a strong emphasis on ethics, and was in so far capable of becoming a guide of life. It might be well enough for Greeks, whose aggressive work in the world had been done, to settle down to an idle old age with a theory of life which practically excluded the possibility of strong decisive action, but Rome was still young, and most of her work was still before her. She might think herself very old and pretend to take peculiar delight in many of the more decadent forms of Greek thought, but in reality her leaders instinctively turned to Stoicism, as affording a compromise between the mere thoughtless activity of youth, which acts for the love of acting, and the jaded philosophy of the vanity of all effort. About the middle of the century (circa B.C. 150) there existed in Rome a centre of culture and intellectual influence, a little group of men peculiarly interesting, because they form practically the first instance of an intellectual coterie in the history of Rome. Their leader was the younger Scipio, who had as his associates his friend Laelius, the poet Lucilius, whose brilliant writings, submerged by the more brilliant satires of Horace, form one of the most deplorable losses in Roman literature, and the Stoic philosopher Panaitios of Rhodes. Terence had also belonged to the circle, but he was now dead. Stoicism was the avowed philosophy of these men, and their influence, especially that of Panaitios and Lucilius, did much to popularise their chosen philosophical creed.
While Stoicism claimed superiority to religion and showed the impossibility of attaching any value to religious knowledge, it recognised the necessity of religion for the common people on grounds of expediency, and effected a reconciliation between this denial of religion on the one hand, and the recognition of it on the other, by asserting that the religion of the state was justified not only by expediency but much more by the fact that it was after all only the presentation of the truths of Stoicism in a form which was intelligible to the lower classes. Had this group of Scipio and his associates made an effort to emphasise these particular doctrines of Stoicism in relation to religion, the downfall of the state religion, which occurred in the following century, might have been hindered. But for reasons, which we shall see in a moment, this downfall could not have been prevented, and it is doubtful whether the influence of any philosophical system, even when supported by such prominent men, could have perceptibly postponed the catastrophe. Meantime the only visible contribution of Stoicism to the problem of religion was the growth under her influence of the idea of a "double truth," one truth for the intellectual classes and one for the common people, reaching its climax in the phrase "It is expedient for the state to be deceived in matters of religion" (expedit igitur falli in religione civitatem). This was the attitude toward religion of the most intellectual men in the community at the beginning of what was in many ways the most terrible period in Rome's history.
The last century before Christ (more exactly B.C. 133-B.C. 27) is the story of how Rome became an empire because she was no longer able to be a republic; it is the history of the growth of one-man power because many-men power had become impossible. This growth was caused not only, nor at first even chiefly, by the grasping character of Rome's statesmen, but by the increase of the rabble and the consequent unmanageable character of her population, except under the firm hand of a single master. And the reason why it took one hundred years of civil war to change the republic into the empire was not because the spirit of the republic was so slow in dying that its death struggles filled a century, but merely because the republic died too easily and the way to one-man power was so simple that there were too many candidates for the position, and hence the civil wars between them. These civil wars were bound to continue until the bitter lessons of experience had taught men not only how to gain the supreme control, which was relatively easy, but how to keep it and exclude rivals, which was much more difficult. The ambitious leaders of this century did not have to create a throne; that was ready to their hand. Their task was only to put defences around it. Even these defences of it were not directly against the people, for the people had no desire to overthrow the throne, but merely against the rival candidates. Step by step from Tiberius Gracchus to Gaius Gracchus, and on to Marius, to Sulla, to Pompey, to Julius Caesar, possession became more and more permanent; until from being a mere momentary position, it became nine points of the law, and Octavian made the tenure perfect by adding an almost religious reverence to his person in the title Augustus.
In the main the foreign wars of the second century before Christ gave place to the Civil War at home, but there was one exception to this, the war with Mithradates, king of Pontus, which on various occasions during the early part of the century took large bodies of Romans to the Orient. And as though to supplement this knowledge of the East, in the closing half of the century the field of the civil struggle was enlarged so that it too included the East and South-East. We have already seen so many instances of the effects of political events on the course of Roman religion that it is a matter of no surprise to us to see that both of these struggles, the Civil War and the Oriental wars, left their marks on religion. It would be much more surprising if they had not done so. In the struggle of the rivals at home every possible weapon was employed, and it was soon discovered that the priests and the paraphernalia of religion were excellent means of political power and influence. The religion of the state therefore became enslaved to politics. On the other hand the campaigns in the East made the soldiers, and eventually on their return the whole populace, acquainted with various Oriental deities, which helped to satisfy their craving for the sensational and the superstitious. Thus while the state religion in its debauched condition was losing influence, the orgiastic element in worship was gaining power through these newly acquired Oriental cults. The story of the religion of the last century of the republic is accordingly the history of the control of state religion by politics and its consequent destruction, and the growth of superstition because of the coming of new Oriental worships; and we may add to these two topics a third: the pathetic attempts of philosophy to breathe new life into the dead religion of the state.