The overthrow of the “free” political life of Athens was followed by a certain increase in intellectual activity, the result of throwing back the remaining store of energy on the life of the mind. By this time an almost open unbelief as to the current tales concerning the Gods would seem to have become general among educated people, the withdrawal of the old risk of impeachment by political factions being so far favourable to outspokenness. It is on record that the historian Ephoros (of Cumæ in Æolia: fl. 350 B.C.), who was a pupil of Isocrates, openly hinted in his work at his disbelief in the oracle of Apollo, and in fabulous traditions generally.295 In other directions there were similar signs of freethought. The new schools of philosophy founded by Zeno the Stoic (fl. 280: d. 263 or 259) and Epicurus (341–270), whatever their defects, compare not ill with those of Plato and Aristotle, exhibiting greater ethical sanity and sincerity if less metaphysical subtlety. Of metaphysics there had been enough for the age: what it needed was a rational philosophy of life. But the loss of political freedom, although thus for a time turned to account, was fatal to continuous progress. The first great thinkers had all been free men in a politically free environment: the atmosphere of cowed subjection, especially after the advent of the Romans, could not breed their like; and originative energy of the higher order soon disappeared. Sane as was the moral philosophy of Epicurus, and austere as was that of Zeno, they are alike static or quietist,296 the codes of a society seeking a regulating and sustaining principle rather than hopeful of new achievement or new truth. And the universal skepticism of Pyrrho has the same effect of suggesting that what is wanted is not progress, but balance. It is significant that he, who carried the Sokratic profession of Nescience to the typical extreme of doctrinal Nihilism, was made high-priest of his native town of Elis, and had statues erected in his honour.297

Considered as freethinkers, all three men tell at once of the critical and of the reactionary work done by the previous age. Pyrrho, the universal doubter, appears to have taken for granted, with the whole of his followers, such propositions as that some animals (not insects) are produced by parthenogenesis, that some live in the fire, and that the legend of the Phœnix is true.298 Such credences stood for the arrest of biological science in the Sokratic age, with Aristotle, so often mistakenly, at work; while, on the other hand, the Sokratic skepticism visibly motives the play of systematic doubt on the dogmas men had learned to question. Zeno, again, was substantially a monotheist; Epicurus, adopting but not greatly developing the science of Demokritos,299 turned the Gods into a far-off band of glorious spectres, untroubled by human needs, dwelling for ever in immortal calm, neither ruling nor caring to rule the world of men.300 In coming to this surprising compromise, Epicurus, indeed, probably did not carry with him the whole intelligence even of his own school. His friend, the second Metrodoros of Lampsakos, seems to have been the most stringent of all the censors of Homer, wholly ignoring his namesake’s attempts to clear the bard of impiety. “He even advised men not to be ashamed to confess their utter ignorance of Homer, to the extent of not knowing whether Hector was a Greek or a Trojan.”301 Such austerity towards myths can hardly have been compatible with the acceptance of the residuum of Epicurus. That, however, became the standing creed of the sect, and a fruitful theme of derision to its opponents. Doubtless the comfort of avoiding direct conflict with the popular beliefs had a good deal to do with the acceptance of the doctrine.

This strange retention of the theorem of the existence of anthropomorphic Gods, with a flat denial that they did anything in the universe, might be termed the great peculiarity of average ancient rationalism, were it not that what makes it at all intelligible for us is just the similar practice of modern non-Christian theists. The Gods of antiquity were non-creative, but strivers and meddlers and answerers of prayer; and ancient rationalism relieved them of their striving and meddling, leaving them no active or governing function whatever, but for the most part cherishing their phantasms. The God of modern Christendom had been at once a creator and a governor, ruling, meddling, punishing, rewarding, and hearing prayer; and modern theism, unable to take the atheistic or agnostic plunge, relieves him of all interference in things human or cosmic, but retains him as a creative abstraction who somehow set up “law,” whether or not he made all things out of nothing. The psychological process in the two cases seems to be the same—an erection of æsthetic habit into a philosophic dogma, and an accommodation of phrase to popular prejudice.

Whatever may have been the logical and psychological crudities of Epicureanism, however, it counted for much as a deliverance of men from superstitious fears; and nothing is more remarkable in the history of ancient philosophy than the affectionate reverence paid to the founder’s memory302 on this score through whole centuries. The powerful Lucretius sounds his highest note of praise in telling how this Greek had first of all men freed human life from the crashing load of religion, daring to pass the flaming ramparts of the world, and by his victory putting men on an equality with heaven.303 The laughter-loving Lucian two hundred years later grows gravely eloquent on the same theme.304 And for generations the effect of the Epicurean check on orthodoxy is seen in the whole intellectual life of the Greek world, already predisposed in that direction.305 The new schools of the Cynics and the Cyrenaics had alike shown the influence in their perfect freedom from all religious preoccupation, when they were not flatly dissenting from the popular beliefs. Antisthenes, the founder of the former school (fl. 400 B.C.), though a pupil of Sokrates, had been explicitly anti-polytheistic, and an opponent of anthropomorphism.306 Aristippos of Cyrene, also a pupil of Socrates, who a little later founded the Hedonic or Cyrenaic sect, seems to have put theology entirely aside. One of the later adherents of the school, Theodoros, was like Diagoras labelled “the Atheist”307 by reason of the directness of his opposition to religion; and in the Rome of Cicero he and Diagoras are the notorious atheists of history.308 To Theodoros, who had a large following, is attributed an influence over the thought of Epicurus,309 who, however, took the safer position of a verbal theism. The atheist is said to have been menaced by Athenian law in the time of Demetrius Phalereus, who protected him; and there is even a story that he was condemned to drink hemlock;310 but he was not of the type that meets martyrdom, though he might go far to provoke it.311 Roaming from court to court, he seems never to have stooped to flatter any of his entertainers. “You seem to me,” said the steward of Lysimachos of Thrace to him on one occasion, “to be the only man who ignores both Gods and kings.”312

In the same age the same freethinking temper is seen in Stilpo of Megara (fl. 307), of the school of Euclides, who is said to have been brought before the Areopagus for the offence of saying that the Pheidian statue of Athênê was “not a God,” and to have met the charge with the jest that she was in reality not a God but a Goddess; whereupon he was exiled.313 The stories told of him make it clear that he was an unbeliever, usually careful not to betray himself. Euclides, too, with his optimistic pantheism, was clearly a heretic; though his doctrine that evil is non-ens314 later became the creed of some Christians. Yet another professed atheist was the witty Bion of Borysthenes, pupil of Theodoros, of whom it is told, in a fashion familiar to our own time, that in sickness he grew pious through fear.315 Among his positions was a protest or rather satire against the doctrine that the Gods punished children for the crimes of their fathers.316 In the other schools, Speusippos (fl. 343), the nephew of Plato, leant to monotheism;317 Strato of Lampsakos, the Peripatetic (fl. 290), called “the Naturalist,” taught sheer pantheism, anticipating Laplace in declaring that he had no need of the action of the Gods to account for the making of the world;318 Dikaiarchos (fl. 326–287), another disciple of Aristotle, denied the existence of separate souls, and the possibility of foretelling the future;319 and Aristo and Cleanthes, disciples of Zeno, varied likewise in the direction of pantheism; the latter’s monotheism, as expressed in his famous hymn, being one of several doctrines ascribed to him.320

Contemporary with Epicurus and Zeno and Pyrrho, too, was Evêmeros (Euhemerus), whose peculiar propaganda against Godism seems to imply theoretic atheism. As an atheist he was vilified in a manner familiar to modern ears, the Alexandrian poet Callimachus labelling him an “arrogant old man vomiting impious books.”321 His lost work, of which only a few extracts remain, undertook to prove that all the Gods had been simply famous men, deified after death; the proof, however, being by way of a fiction about old inscriptions found in an imaginary island.322 As above noted,323 the idea may have been borrowed from skeptical Phoenicians, the principle having already been monotheistically applied by the Bible-making Jews,324 though, on the other hand, it had been artistically and to all appearance uncritically acted on in the Homeric epopees. It may or may not then have been by way of deliberate or reasoning Evêmerism that certain early Greek and Roman deities were transformed, as we have seen, into heroes or hetairai.325 In any case, the principle seems to have had considerable vogue in the later Hellenistic world; but with the effect rather of paving the way for new cults than of setting up scientific rationalism in place of the old ones. Quite a number of writers like Palaiphatos, without going so far as Evêmeros, sought to reduce myths to natural possibilities and events, by way of mediating between the credulous and the incredulous.326 Their method is mostly the naïf one revived by the Abbé Banier in the eighteenth century of reducing marvels to verbal misconceptions. Thus for Palaiphatos the myth of Kerberos came from the facts that the city Trikarenos was commonly spoken of as a beautiful and great dog; and that Geryon, who lived there, had great dogs called Kerberoi; Actæon was “devoured by his dogs” in the sense that he neglected his affairs and wasted his time in hunting; the Amazons were shaved men, clad as were the women in Thrace, and so on.327 Palaiphatos and the Herakleitos who also wrote De Incredibilibus agree that Pasiphae’s bull was a man named Tauros; and the latter writer similarly explains that Scylla was a beautiful hetaira with avaricious hangers-on, and that the harpies were ladies of the same profession. If the method seems childish, it is to be remembered that as regards the explanation of supernatural events it was adhered to by German theologians of a century ago; and that its credulity in incredulity is still to be seen in the current view that every narrative in the sacred books is to be taken as necessarily standing for a fact of some kind.

One of the inferrible effects of the Evêmerist method was to facilitate for the time the adoption of the Egyptian and eastern usage of deifying kings. It has been plausibly argued that this practice stands not so much for superstition as for skepticism, its opponents being precisely the orthodox believers, and its promoters those who had learned to doubt the actuality of the traditional Gods. Evêmerism would clinch such a tendency; and it is noteworthy that Evêmeros lived at the court of Kassander (319–296 B.C.) in a period in which every remaining member of the family of the deified Alexander had perished, mostly by violence; while the contemporary Ptolemy I of Egypt received the title of Sotêr, “Saviour,” from the people of Rhodes.328 It is to be observed, however, that while in the next generation Antiochus I of Syria received the same title, and his successor Antiochus II that of Theos, “God,” the usage passes away; Ptolemy III being named merely Evergetês, “the Benefactor” (of the priests), and even Antiochus III only “the Great.” Superstition was not to be ousted by a political exploitation of its machinery.329

In Athens the democracy, restored in a subordinate form by Kassander’s opponent, Demetrius Poliorkêtes (307 B.C.), actually tried to put down the philosophic schools, all of which, but the Aristotelian in particular, were anti-democratic, and doubtless also comparatively irreligious. Epicurus and some of his antagonists were exiled within a year of his opening his school (306 B.C.); but the law was repealed in the following year.330 Theophrastos, the head of the Aristotelian school, was indicted in the old fashion for impiety, which seems to have consisted in denouncing animal sacrifice.331 These repressive attempts, however, failed; and no others followed at Athens in that era; though in the next century the Epicureans seem to have been expelled from Lythos in Crete and from Messenê in the Peloponnesos, nominally for their atheism, in reality probably on political grounds.332 Thus Zeno was free to publish a treatise in which, besides far out-going Plato in schemes for dragooning the citizens into an ideal life, he proposed a State without temples or statues of the Gods or law courts or gymnasia.333 In the same age there is trace of “an interesting case of rationalism even in the Delphic oracle.”334 The people of the island of Astypalaia, plagued by hares or rabbits, solemnly consulted the oracle, which briefly advised them to keep dogs and take to hunting. About the same time we find Lachares, temporarily despot at Athens, plundering the shrine of Pallas of its gold.335 Even in the general public there must have been a strain of surviving rationalism; for among the fragments of Menander (fl. 300), who, in general, seems to have leant to a well-bred orthodoxy,336 there are some speeches savouring of skepticism and pantheism.337

It was in keeping with this general but mostly placid and non-polemic latitudinarianism that the New Academy, the second birth, or rather transformation, of the Platonic school, in the hands of Arkesilaos and the great Carneades (213–129), and later of the Carthaginian Clitomachos, should be marked by that species of skepticism thence called Academic—a skepticism which exposed the doubtfulness of current religious beliefs without going the Pyrrhonian length of denying that any beliefs could be proved, or even denying the existence of the Gods.

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 dialectic341 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 intellectual346 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 Hypotyposes356 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.

It was, in fact, impossible that the Greeks should either stifle or persecute science or freethought as it was either stifled or persecuted by ancient Jews (who had almost no science by reason of their theology) or by modern Christians, simply because the Greeks had no anti-scientific hieratic literature. It remains profoundly significant for science that the ancient civilization which on the smallest area evolved the most admirable life, which most completely transcended all the sources from which it originally drew, and left a record by which men are still charmed and taught, was a civilization as nearly as might be without Sacred Books, without an organized priesthood, and with the largest measure of democratic freedom that the ancient world ever saw.