For the arguments of Carneades against the Stoic doctrine of immortality see Cicero, De natura Deorum, iii, 12, 17; and for his argument against theism see Sextus Empiricus, Adv. Math. ix, 172, 183. Mr. Benn pronounces this criticism of theology “the most destructive that has ever appeared, the armoury whence religious skepticism ever since has been supplied” (The Philosophy of Greece, etc., p. 258). This seems an over-statement. But it is just to say, as does Mr. Whittaker (Priests, Philosophers, and Prophets, 1911, p. 60; cp. p. 86), that “there has never been a more drastic attack than that of Carneades, which furnished Cicero with the materials for his second book, On Divination”; and, as does Prof. Martha (Études Morales sur l’antiquité, 1889, p. 77), that no philosophic or religious school has been able to ignore the problems which Carneades raised.
As against the essentially uncritical Stoics, the criticism of Carneades is sane and sound; and he has been termed by judicious moderns “the greatest skeptical mind of antiquity”[338] and “the Bayle of Antiquity”;[339] though he seems to have written nothing.[340] There is such a concurrence of testimony as to the victorious power of his oratory and the invincible skill of his dialectic[341] that he must be reckoned one of the great intellectual and rationalizing forces of his day, triumphing as he did in the two diverse arenas of Greece and Rome. His disciple and successor Clitomachos said of him, with Cicero’s assent, that he had achieved a labour of Hercules “in liberating our souls as it were of a fierce monster, credulity, conjecture, rash belief.”[342] He was, in short, a mighty antagonist of thoughtless beliefs, clearing the ground for a rational life; and the fact that he was chosen with Diogenes the Peripatetic and Critolaos the Stoic to go to Rome to plead the cause of ruined Athens, mulcted in an enormous fine, proved that he was held in high honour at home. Athens, in short, was not at this stage “too superstitious.” Unreasoning faith was largely discredited by philosophy.
On this basis, in a healthy environment, science and energy might have reared a constructive rationalism; and for a time astronomy, in the hands of Aristarchos of Samos (third century B.C.), Eratosthenes of Cyrene, the second keeper of the great Alexandrian library (2nd cent. B.C.), and above all of Hipparchos of Nikaia, who did most of his work in the island of Rhodes, was carried to a height of mastery which could not be maintained, and was re-attained only in modern times.[343] Thus much could be accomplished by “endowment of research” as practised by the Ptolemies at Alexandria; and after science had declined with the decline of their polity, and still further under Roman rule, the new cosmopolitanism of the second century of the empire reverted to the principle of intelligent evocation, producing under the Antonines the “Second” School of Alexandria.
But the social conditions remained fundamentally bad; and the earlier greatness was never recovered. “History records not one astronomer of note in the three centuries between Hipparchos and Ptolemy”; and Ptolemy (fl. 140 C.E.) not only retrograded into astronomical error, but elaborated on oriental lines a baseless fabric of astrology.[344] Other science mostly decayed likewise. The Greek world, already led to lower intellectual levels by the sudden ease and wealth opened up to it through the conquests of Alexander and the rule of his successors, was cast still lower by the Roman conquest. Pliny, extolling Hipparchos with little comprehension of his work, must needs pronounce him to have “dared a thing displeasing to God” in numbering the stars for posterity.[345] In the air of imperialism, stirred by no other, original thought could not arise; and the mass of the Greek-speaking populations, rich and poor, gravitated to the level of the intellectual[346] and emotional life of more or less well-fed slaves. In this society there rapidly multiplied private religious associations—thiasoi, eranoi, orgeones—in which men and women, denied political life, found new bonds of union and grounds of division in cultivating worships, mostly oriental, which stimulated the religious sense and sentiment.[347]
Such was the soil in which Christianity took root and flourished; while philosophy, after the freethinking epoch following on the fall of Athenian power, gradually reverted to one or other form of mystical theism or theosophy, of which the most successful was the Neo-Platonism of Alexandria.[348] When the theosophic Julian rejoiced that Epicureanism had disappeared,[349] he was exulting in a symptom of the intellectual decline that made possible the triumph of the faith he most opposed. Christianity furthered a decadence thus begun under the auspices of pagan imperialism; and “the fifth century of the Christian era witnessed an almost total extinction of the sciences in Alexandria”[350]—an admission which disposes of the dispute as to the guilt of the Arabs in destroying the great library.
Here and there, through the centuries, the old intellectual flame burns whitely enough: the noble figure of Epictetus in the first century of the new era, and that of the brilliant Lucian in the second, in their widely different ways remind us that the evolved faculty was still there if the circumstances had been such as to evoke it. Menippos in the first century B.C. had played a similar part to that of Lucian, in whose freethinking dialogues he so often figures; but with less of subtlety and intellectuality. Lucian’s was indeed a mind of the rarest lucidity; and the argumentation of his dialogue Zeus Tragædos covers every one of the main aspects of the theistic problem. There is no dubiety as to his atheistic conclusion, which is smilingly implicit in the reminder he puts in the mouth of Hermes, that, though a few men may adopt the atheistic view, “there will always be plenty of others who think the contrary—the majority of the Greeks, the ignorant many, the populace, and all the barbarians.” But the moral doctrine of Epictetus is one of endurance and resignation; and the almost unvarying raillery of Lucian, making mere perpetual sport of the now moribund Olympian Gods, was hardly better fitted than the all-round skepticism of the school of Sextus Empiricus to inspire positive and progressive thinking.
This latter school, described by Cicero as dispersed and extinct in his day,[351] appears to have been revived in the first century by Ænesidemos, who taught at Alexandria.[352] It seems to have been through him in particular that the Pyrrhonic system took the clear-cut form in which it is presented at the close of the second century by the accomplished Sextus “Empiricus”—that is, the empirical (i.e., experiential) physician,[353] who lived at Alexandria and Athens (fl. 175–205 C.E.). As a whole, the school continued to discredit dogmatism without promoting knowledge. Sextus, it is true, strikes acutely and systematically at ill-founded beliefs, and so makes for reason;[354] but, like the whole Pyrrhonian school, he has no idea of a method which shall reach sounder conclusions. As the Stoics had inculcated the control of the passions as such, so the skeptics undertook to make men rise above the prejudices and presuppositions which swayed them no less blindly than ever did their passions. But Sextus follows a purely skeptical method, never rising from the destruction of false beliefs to the establishment of true. His aim is ataraxia, a philosophic calm of non-belief in any dogmatic affirmation beyond the positing of phenomena as such; and while such an attitude is beneficently exclusive of all fanaticism, it unfortunately never makes any impression on the more intolerant fanatic, who is shaken only by giving him a measure of critical truth in place of his error. And as Sextus addressed himself to the students of philosophy, not to the simple believers in the Gods, he had no wide influence.[355] Avowedly accepting the normal view of moral obligations while rejecting dogmatic theories of their basis, the doctrine of the strict skeptics had the effect, from Pyrrho onwards, of giving the same acceptance to the common religion, merely rejecting the philosophic pretence of justifying it. Taken by themselves, the arguments against current theism in the third book of the Hypotyposes[356] are unanswerable; but, when bracketed with other arguments against the ordinary belief in causation, they had the effect of leaving theism on a par with that belief. Against religious beliefs in particular, therefore, they had no wide destructive effect.
Lucian, again, thought soundly and sincerely on life; his praise of the men whose memories he respected, as Epicurus and Demonax (if the Life of Demonax attributed to him be really his), is grave and heartfelt; and his ridicule of the discredited Gods was perfectly right so far as it went. It is certain that the unbelievers and the skeptics alike held their own with the believers in the matter of right living.[357] In the period of declining pagan belief, the maxim that superstition was a good thing for the people must have wrought a quantity and a kind of corruption that no amount of ridicule of religion could ever approach. Polybius (fl. 150 B.C.) agrees with his complacent Roman masters that their greatness is largely due to the carefully cultivated superstition of their populace, and charges with rashness and folly those who would uproot the growth;[358] and Strabo, writing under Tiberius—unless it be a later interpolator of his work—confidently lays down the same principle of governmental deceit,[359] though in an apparently quite genuine passage he vehemently protests the incredibility of the traditional tales about Apollo.[360] So far had the doctrine evolved since Plato preached it. But to countervail it there needed more than a ridicule which after all reached only the class who had already cast off the beliefs derided, leaving the multitude unenlightened. The lack of the needed machinery of enlightenment was, of course, part of the general failure of the Græco-Roman civilization; and no one man’s efforts could have availed, even if any man of the age could have grasped the whole situation. Rather the principle of esoteric enlightenment, the ideal of secret knowledge, took stronger hold as the mass grew more and more comprehensively superstitious. Even at the beginning of the Christian era the view that Homer’s deities were allegorical beings was freshly propounded in the writings of Herakleides and Cornutus (Phornutus); but it served only as a kind of mystical Gnosis, on all fours with Christian Gnosticism, and was finally taken up by Neo-Platonists, who were no nearer rationalism for adopting it.[361]
So with the rationalism to which we have so many uneasy or hostile allusions in Plutarch. We find him resenting the scoffs of Epicureans at the doctrine of Providence, and recoiling from the “abyss of impiety”[362] opened up by those who say that “Aphrodite is simply desire, and Hermes eloquence, and the Muses the arts and sciences, and Athênê wisdom, and Dionysos merely wine, Hephaistos fire, and Dêmêtêr corn”;[363] and in his essay On Superstition he regretfully recognizes the existence of many rational atheists, confessing that their state of mind is better than that of the superstitious who abound around him, with their “impure purifications and unclean cleansings,” their barbaric rites, and their evil Gods. But the unbelievers, with their keen contempt for popular folly, availed as little against it as Plutarch himself, with his doctrine of a just mean. The one effectual cure would have been widened knowledge; and of such an evolution the social conditions did not permit.
To return to a state of admiration for the total outcome of Greek thought, then, it is necessary to pass from the standpoint of simple analysis to that of comparison. It is in contrast with the relatively slight achievement of the other ancient civilizations that the Greek, at its height, still stands out for posterity as a wonderful growth. That which, tried by the test of ideals, is as a whole only one more tragic chapter in the record of human frustration, yet contains within it light and leading as well as warning; and for long ages it was as a lost Paradise to a darkened world. It has been not untruly said that “the Greek spirit is immortal, because it was free”:[364] free not as science can now conceive freedom, but in contrast with the spiritual bondage of Jewry and Egypt, the half-barbaric tradition of imperial Babylon, and the short flight of mental life in Rome. Above all, it was ever in virtue of the freedom that the high things were accomplished; and it was ever the falling away from freedom, the tyranny either of common ignorance or of mindless power, that wrought decadence. There is a danger, too, of injustice in comparing Athens with later States. When a high authority pronounces that “the religious views of the Demos were of the narrowest kind,”[365] he is not to be gainsaid; but the further verdict that “hardly any people has sinned more heavily against the liberty of science” is unduly lenient to Christian civilization. The heaviest sins of that against science, indeed, lie at the door of the Catholic Church; but to make that an exoneration of the modern “peoples” as against the ancient would be to load the scales. And even apart from the Catholic Church, which practically suppressed all science for a thousand years, the attitude of Protestant leaders and Protestant peoples, from Luther down to the second half of the nineteenth century, has been one of hatred and persecution towards all science that clashed with the sacred books.[366] In the Greek world there was more scientific discussion in the three hundred years down to Epicurus than took place in the whole of Christian Europe in thirteen hundred; and the amount of actual violence used towards innovators in the pagan period, though lamentable enough, was trifling in comparison with that recorded in Christian history, to say nothing of the frightful annals of witch-burning, to which there is no parallel in civilized heathen history. The critic, too, goes on to admit that, while “Sokrates, Anaxagoras, and Aristotle fell victims in different degrees to the bigotry of the populace,” “of course their offence was political rather than religious. They were condemned not as heretics, but as innovators in the state religion.” And, as we have seen, all three of the men named taught in freedom for many years till political faction turned popular bigotry against them. The true measure of Athenian narrowness is not to be reached, therefore, without keeping in view the long series of modern outrages and maledictions against the makers and introducers of new machinery, and the multitude of such episodes as the treatment of Priestley in Christian Birmingham, little more than a century ago. On a full comparison the Greeks come out not ill.