In their explanation of the origin of the gods they went beyond Aristotle, but their doctrine was not always the same on this point. The earlier Stoics regarded mythology and all theology as human inventions, but not arbitrary inventions. Mythology, they thought, should be understood allegorically; it was the naïve expression partly of a correct conception of Nature, partly of ethical and metaphysical truths. Strictly speaking, men had always been Stoics, though in an imperfect way. This point of view was elaborated in detail by the first Stoics, who took their stand partly on the earlier naturalism which had already broken the ground in this direction, and partly on sophistic, so that they even brought into vogue again the theory of Prodicus, that the gods were a hypostasis of the benefits of civilisation. Such a standpoint could not of course be maintained without arbitrariness and absurdities which exposed it to embarrassing criticism. This seems to have been the reason why the later Stoics, and especially Poseidonius, took another road. They adopted the doctrine of [pg 105] Xenocrates with regard to demons and developed it in fantastic forms. The earlier method was not, however, given up, and at the time of Cicero we find both views represented in the doctrine of the school.
Such is the appearance of the theory. In both its forms it is evidently an attempt to meet popular belief half-way from a standpoint which is really beyond it. This tendency is seen even more plainly in the practice of the Stoics. They recognised public worship and insisted on its advantages; in their moral reflections they employed the gods as ideals in the Socratic manner, regardless of the fact that in their theory they did not really allow for gods who were ideal men; nay, they even went the length of giving to their philosophical deity, the “universal reason,” the name of Zeus by preference, though it had nothing but the name in common with the Olympian ruler of gods and men. This pervading ambiguity brought much well-deserved reproof on the Stoics even in ancient times; but, however unattractive it may seem to us, it is of significance as a manifestation of the great hold popular belief continued to have even on the minds of the upper classes, for it was to these that the Stoics appealed.
Far more original and consistent is the Epicurean attitude towards the popular faith. Epicurus unreservedly acknowledged its foundation, i.e. the existence of anthropomorphic beings of a higher order than man. His gods had human shape but they were eternal and blessed. In the latter definition was included, according to the ethical ideal of Epicurus, the idea that the gods were free from every care, including taking an interest in [pg 106] nature or in human affairs. They were entirely outside the world, a fact to which Epicurus gave expression by placing them in the empty spaces between the infinite number of spherical worlds which he assumed. There his gods lived in bliss like ideal Epicureans. Lucretius, the only poet of this school, extolled them in splendid verse whose motif he borrowed from Homer's description of Olympus. In this way Epicurus also managed to uphold public worship itself. It could not, of course, have any practical aim, but it was justified as an expression of the respect man owed to beings whose existence expressed the human ideal.
The reasons why Epicurus assumed this attitude towards popular belief are simple enough. He maintained that the evidence of sensual perception was the basis of all knowledge, and he thought that the senses (through dreams) gave evidence of the existence of the gods. And in the popular ideas of the bliss of the gods he found his ethical ideal directly confirmed. As regards their eternity the case was more difficult. The basis of his system was the theory that everything was made of atoms and that only the atoms as such, not the bodies composed of the atoms, were eternal. He conceived the gods, too, as made of atoms, nevertheless he held that they were eternal. Any rational explanation of this postulate is not possible on Epicurus's hypotheses, and the criticism of his theology was therefore especially directed against this point.
Epicurus was the Greek philosopher who most consistently took the course of emphasising the popular dogma of the perfection of the gods in order [pg 107] to preserve the popular notions about them. And he was the philosopher to whom this would seem the most obvious course, because his ethical ideal—quietism—agreed with the oldest popular ideal of divine existence. In this way Epicureanism became the most orthodox of all Greek philosophical schools. If nevertheless Epicurus did not escape the charge of atheism the sole reason is that his whole theology was denounced off-hand as hypocrisy. It was assumed to be set up by him only to shield himself against a charge of impiety, not to be his actual belief. This accusation is now universally acknowledged to be unjustified, and the Epicureans had no difficulty in rebutting it with interest. They took special delight in pointing out that the theology of the other schools was much more remote from popular belief than theirs, nay, in spite of recognition of the existing religion, was in truth fundamentally at variance with it. But in reality their own was in no better case: gods who did not trouble in the least about human affairs were beings for whom popular belief had no use. It made no difference that Epicurus's definition of the nature of the gods was the direct outcome of a fundamental doctrine of popular belief. Popular religion will not tolerate pedantry.
In this connexion we cannot well pass over a third philosophical school which played no inconspicuous rôle in the latter half of our period, namely, Scepticism. The Sceptic philosophy as such dates from Socrates, from whom the so-called Megarian school took its origin, but it did not reach its greatest importance until the second century, when the [pg 108] Academic school became Sceptic. It was especially the famous philosopher Carneades, a brilliant master of logic and dialectic, who made a success by his searching negative criticism of the doctrines of the other philosophical schools (the Dogmatics). For such criticism the theology of the philosophers was a grateful subject, and Carneades did not spare it. Here as in all the investigations of the Sceptics the theoretical result was that no scientific certainty could be attained: it was equally wrong to assert or to deny the existence of the gods. But in practice the attitude of the Sceptics was quite different. Just as they behaved like other people, acting upon their immediate impressions and experience, though they did not believe that anything could be scientifically proved, e.g. not even the reality of the world of the senses, so also did they acknowledge the existing cult and lived generally like good heathens. Characteristic though Scepticism be of a period of Greek spiritual life in which Greek thought lost its belief in itself, it was, however, very far from supporting atheism. On the contrary, according to the correct Sceptic doctrine atheism was a dogmatic contention which theoretically was as objectionable as its antithesis, and in practice was to be utterly discountenanced.
A more radical standpoint than this as regards the gods of the popular faith is not found during the Hellenistic period except among the less noted schools, and in the beginning of the period. We have already mentioned such thinkers as Strato, Theodorus, and Stilpo; chronologically they belong to the Hellenistic Age, but in virtue of their [pg 109] connexion with the Socratic philosophy they were dealt with in the last chapter. A definite polemical attitude towards the popular faith is also a characteristic of the Cynic school, hence, though our information is very meagre, we must speak of it a little more fully.
The Cynics continued the tendency of Antisthenes, but the school comparatively soon lost its importance. After the third century we hear no more about the Cynics until they crop up again about the year a.d. 100. But in the fourth and third centuries the school had important representatives. The most famous is Diogenes; his life, to be sure, is entangled in such a web of legend that it is difficult to arrive at a true picture of his personality. Of his attitude towards popular belief we know one thing, that he did not take part in the worship of the gods. This was a general principle of the Cynics; their argument was that the gods were “in need of nothing” (cf. above, pp. [60] and [41]). If we find him accused of atheism, in an anecdote of very doubtful value, it may, if there is anything in it, be due to his rejection of worship. Of one of his successors, however, Bion of Borysthenes, we have authentic information that he denied the existence of the gods, with the edifying legend attached that he was converted before his death. But we also hear of Bion that he was a disciple of the atheist Theodorus, and other facts go to suggest that Bion united Cynic and Hedonistic principles in his mode of life—a compromise that was not so unlikely as might be supposed. Bion's attitude cannot therefore be taken as typical of Cynicism. Another [pg 110] Cynic of about the same period (the beginning of the third century) was Menippus of Gadara (in northern Palestine). He wrote tales and dialogues in a mixture of prose and verse. The contents were satirical, the satire being directed against the contemporary philosophers and their doctrines, and against the popular notions of the gods. Menippus availed himself partly of the old criticism of mythology and partly of the philosophical attacks on the popular conception of the gods. The only novelty was the facetious form in which he concealed the sting of serious criticism. It is impossible to decide whether he positively denied the existence of the gods, but his satire on the popular notions and its success among his contemporaries at least testifies to the weakening of the popular faith among the educated classes. In Hellas itself he seems to have gone out of fashion very early; but the Romans took him up again; Varro and Seneca imitated him, and Lucian made his name famous again in the Greek world in the second century after Christ. It is chiefly due to Lucian that we can form an idea of Menippus's literary work, hence we shall return to Cynic satire in our chapter on the age of the Roman Empire.
During our survey of Greek philosophical thought in the Hellenistic period we have only met with a few cases of atheism in the strict sense, and they all occur about and immediately after 300, though there does not seem to be any internal connexion between them. About the same time there appeared a writer, outside the circle of philosophers, who is regularly listed among the atheoi, and who [pg 111] has given a name to a peculiar theory about the origin of the idea of the gods, namely, Euhemerus. He is said to have travelled extensively in the service of King Cassander of Macedonia. At any rate he published his theological views in the shape of a book of travel which was, however, wholly fiction. He relates how he came to an island, Panchaia, in the Indian Ocean, and in a temple there found a lengthy inscription in which Uranos, Kronos, Zeus and other gods recorded their exploits. The substance of the tale was that these gods had once been men, great kings and rulers, who had bestowed on their peoples all sorts of improvements in civilisation and had thus got themselves worshipped as gods. It appears from the accounts that Euhemerus supposed the heavenly bodies to be real and eternal gods—he thought that Uranos had first taught men to worship them; further, as his theory is generally understood, it must be assumed that in his opinion the other gods had ceased to exist as such after their death. This accords with the fact that Euhemerus was generally characterised as an atheist.
The theory that the gods were at first men was not originated by Euhemerus, though it takes its name (Euhemerism) from him. The theory had some support in the popular faith which recognised gods (Heracles, Asclepius) who had lived as men on earth; and the opinion which was fundamental to Greek religion, that the gods had come into existence, and had not existed from eternity, would favour this theory. Moreover, Euhemerus had had an immediate precursor in the slightly earlier [pg 112] Hecataeus of Abdera, who had set forth a similar theory, with the difference, however, that he took the view that all excellent men became real gods. But Euhemerus's theory appeared just at the right moment and fell on fertile soil. Alexander the Great and his successors had adopted the Oriental policy by which the ruler was worshipped as a god, and were supported in this by a tendency which had already made itself felt occasionally among the Greeks in the East. Euhemerus only inverted matters—if the rulers were gods, it was an obvious inference that the gods were rulers. No wonder that his theory gained a large following. Its great influence is seen from numerous similar attempts in the Hellenistic world. At Rome, in the second century, Ennius translated his works into Latin, and as late as the time of Augustus an author such as Diodorus, in his popular history of the world, served up Euhemerism as the best scientific explanation of the origin of religion. It is characteristic, too, that both Jews and Christians, in their attacks on Paganism, reckoned with Euhemerism as a well-established theory. As every one knows, it has survived to our day; Carlyle, I suppose, being its last prominent exponent.