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A Short History of Freethought Ancient and Modern, Volume...

§ 6. Scientific Thought

Project Gutenberg EPUB3 edition Robertson, J. M. (John Mackinnon)
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The fashion in which Galileo’s sidereal discoveries were met is indeed typical of the whole history of freethought. The clergy pointed to the story of Joshua stopping the sun and moon; the average layman scouted the new theory as plain folly; and typical schoolmen insisted that “the heavens are unchangeable,” and that there was no authority in Aristotle for the new assertions. With such minds the man of science had to argue, and in deference to such he had at length to affect to doubt his own demonstrations.259 The Catholic Reaction had finally created as bitter a spirit of hostility to free science in the Church as existed among the Protestants; and in Italy even those who saw the moons of Jupiter through his telescope dared not avow what they had seen.260 It was therefore an unfortunate step on Galileo’s part to go from Padua, which was under the rule of Venice, then anti-papal,261 to Tuscany, on the invitation of the Grand Duke. When in 1613 he published his treatise on the solar spots, definitely upholding Copernicus against Jesuits and Aristotelians, trouble became inevitable; and his letter262 to his pupil, Father Castelli, professor of mathematics at Pisa, discussing the Biblical argument with which they had both been met, at once evoked an explosion when circulated by Castelli. New trouble arose when Galileo in 1615 wrote his apology in the form of a letter to his patroness the Dowager Grand Duchess Cristina of Tuscany, extracts from which became current.
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An outcry of ignorant Dominican monks263 sufficed to set at work the machinery of the Index,264 the first result of which (1616) was to put on the list of condemned books the great treatise of Copernicus, published seventy-three years before. Galileo personally escaped for the present through the friendly intervention of the Pope, Paul V, on the appeal of his patron, the Grand Duke of Tuscany, apparently on the ground that he had not publicly taught the Copernican theory. It would seem as if some of the heads of the Church were at heart Copernicans;265 but they were in any case obliged to disown a doctrine felt by so many others to be subversive of the Church’s authority.
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See the details of the procedure in Domenico Berti, Il Processo Originale de Galileo Galilei, ed. 1878, cap. iv; in Fahie, ch. viii; and in Gebler, ch. vi. The last-cited writer claims to show that, of two records of the “admonition” to Galileo, one, the more stringent in its terms, was false, though made at the date it bears, to permit of subsequent proceedings against Galileo. But the whole thesis is otiose. It is admitted (Gebler, p. 89) that Galileo was admonished “not to defend or hold the Copernican doctrine.” Gebler contends, however, that this was not a command to keep “entire silence,” and that therefore Galileo is not justly to be charged with having disobeyed the injunction of the Inquisition when, in his Dialogues on the Two Principal Systems of the World, the Ptolemaic and Copernican (1632), he dealt dialectically with the subject, neither affirming nor denying, but treating both theories as hypotheses. But the real issue is not Galileo’s cautious disobedience (see Gebler’s own admissions, p. 149) to an irrational decree, but the crime of the Church in silencing him. It is not likely that the “enemies” of Galileo, as Gebler supposes (pp. 90, 338), anticipated his later dialectical handling of the subject, and so falsified the decision of the Inquisition against him in 1616. Gebler had at first adopted the German theory that the absolute command to silence was forged in 1632; and, finding the document certainly belonged to 1616, framed the new theory, quite unnecessarily, to save Galileo’s credit.
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The two records are quite in the spirit and manner of Inquisitorial diplomacy. As Berti remarks, “the Holy Office proceeded with much heedlessness (legerezza) and much confusion” in 1616. Its first judgment, in either form, merely emphasizes the guilt of the second. Cp. Fahie, pp. 167–69.
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Thus officially “admonished” for his heresy, but not punished, in 1616, Galileo kept silence for some years, till in 1618 he published his (erroneous) theory of the tides, which he sent with an ironical epistle to the friendly Archduke Leopold of Austria, professing to be propounding a mere dream, disallowed by the official veto on Copernicus.266 This, however, did him less harm than his essay Il Saggiatore (“The Scales”), in which he opposed the Jesuit Grassi on the question of comets. Receiving the imprimatur in 1623, it was dedicated to the new pope, Urban VIII, who, as the Cardinal Maffeo Barberini, had been Galileo’s friend. The latter could now hope for freedom of speech, as he had all along had a number of friends at the papal court, besides many priests, among his admirers and disciples. But the enmity of the Jesuits countervailed all. They did not succeed in procuring a censure of the Saggiatore, though that subtly vindicates the Copernican system while professing to hold it disproved by the fiat of the Church;267 but when, venturing further, he after another lapse of years produced his Dialogues on the Two Systems, for which he obtained the papal imprimatur in 1632, they caught him in their net. Having constant access to the pope, they contrived to make him believe that Galileo had ridiculed him in one of the personages of his Dialogues.
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It was quite false; but one of the pope’s anti-Copernican arguments was there unconsciously made light of; and his wounded vanity was probably a main factor in the impeachment which followed.268 His Holiness professed to have been deceived into granting the imprimatur;269 a Special Commission was set on foot; the proceedings of 1616 were raked up; and Galileo was again summoned to Rome. He was old and frail, and sent medical certificates of his unfitness for such travel; but it was insisted on, and as under the papal tyranny there was no help, he accordingly made the journey. After many delays he was tried, and, on his formal abjuration, sentenced to formal imprisonment (1633) for teaching the “absurd” and “false doctrine” of the motion of the earth and the non-motion of the sun from east to west. In this case the pope, whatever were his motives, acted as a hot anti-Copernican, expressing his personal opinion on the question again and again, and always in an anti-Copernican sense. In both cases, however, the popes, while agreeing to the verdict, abstained from officially ratifying it,270 so that, in proceeding to force Galileo to abjure his doctrine, the Inquisition technically exceeded its powers—a circumstance in which some Catholics appear to find comfort. Seeing that three of the ten cardinals named in the preamble to the sentence did not sign, it has been inferred that they dissented; but there is no good reason to suppose that either the pope or they wilfully abstained from signing. They had gained their point—the humiliation of the great discoverer.
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Compare Gebler, p. 241; Private Life, p. 257, quoting Tiraboschi. For an exposure of the many perversions of the facts as to Galileo by Catholic writers see Parchappe, Galilée, sa vie, etc., 2e Partie. To such straits has the Catholic Church been reduced in this matter that part of its defence of the treatment of Galileo is the plea that he unwarrantably asserted that the fixity of the sun and the motion of the earth were taught in the Scriptures. Sir Robert Inglis is quoted as having maintained this view in England in 1824 (Mendham, The Literary Policy of the Church of Rome, 2nd ed. 1830, p. 176), and the same proposition was maintained in 1850 by a Roman cardinal. See Galileo e l’Inquisizione, by Monsignor Marini, Roma, 1850, pp. 1, 53–54, etc. Had Galileo really taught as is there asserted, he would only have been assenting to what his priestly opponents constantly dinned in his ears. But in point of fact he had not so assented; for in his letter to Castelli (see Gebler, pp. 46–50) he had earnestly deprecated the argument from the Bible, urging that, though Scripture could not err, its interpreters might misunderstand it; and even going so far as to argue, with much ingenuity, that the story of Joshua, literally interpreted, could be made to harmonize with the Copernican theory, but not at all with the Ptolemaic.
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The thesis revived by Monsignor Marini deserves to rank as the highest flight of absurdity and effrontery in the entire discussion (cp. Berti, Giordano Bruno, 1889, p. 306, note). Every step in both procedures of the Inquisition insists on the falsity and the anti-scriptural character of the doctrine that the earth moves round the sun (see Berti, Il Processo, p. 115 sq.; Gebler, pp. 76–77, 230–34); and never once is it hinted that Galileo’s error lay in ascribing to the Bible the doctrine of the earth’s fixity. In the Roman Index of 1664 the works of Galileo and Copernicus are alike vetoed, with all other writings affirming the movement of the earth and the stability of the sun; and in the Index of 1704 are included libri omnes docentes mobilitatem terrae et immobilitatem solis (Putnam, The Censorship of the Church of Rome, 1906–1907, i, 308, 312).
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The stories of his being tortured and blinded, and saying “Still it moves,” are indeed myths.271 The broken-spirited old man was in no mood so to speak; he was, moreover, in all respects save his science, an orthodox Catholic,272 and as such not likely to defy the Church to its face. In reality he was formally in the custody of the Inquisition—and this not in a cell, but in the house of an official—for only twenty-two days. After the sentence he was again formally detained for some seventeen days in the Villa Medici, but was then allowed to return to his own rural home at Acatri,273 on condition that he lived in solitude, receiving no visitors. He was thus much more truly a prisoner than the so-called “prisoner of the Vatican” in our own day. The worst part of the sentence, however, was the placing of all his works, published and unpublished, on the Index Expurgatorius, and the gag thus laid on all utterance of rational scientific thought in Italy—an evil of incalculable influence. “The lack of liberty and speculation,” writes a careful Italian student, “was the cause of the death first of the Accademia dei Lincei, an institution unique in its time; then of the Accademia del Cimento. Thus Italy, after the marvellous period of vigorous native civilization in the thirteenth century, after a second period of civilization less native but still its own, as being Latin, saw itself arrested on the threshold of a third and not less splendid period.
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Vexations and prohibitions expelled courage, spontaneity, and universality from the national mind; literary style became uncertain, indeterminate; and, forbidden to treat of government, science, or religion, turned to things frivolous and fruitless. For the great academies, instituted to renovate and further the study of natural philosophy, were substituted small ones without any such aim. Intellectual energy, the love of research and of objective truth, greatness of feeling and nobility of character, all suffered. Nothing so injures a people as the compulsion to express or conceal its thought solely from motives of fear. The nation in which those conditions were set up became intellectually inferior to those in which it was possible to pass freely in the vast regions of knowledge. Her culture grew restricted, devoid of originality, vaporous, umbratile; there arose habits of servility and dissimulation; great books, great men, great purposes were denaturalized.”274
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It was thus in the other countries of Europe that Galileo’s teaching bore its fruit, for he speedily got his condemned Dialogues published in Latin by the Elzevirs; and in 1638, also at the hands of the Elzevirs, appeared his Dialogues of the New Sciences [i.e., of mechanics and motion], the “foundation of mechanical physics.” By this time he was totally blind, and then only, when physicians could not help him save by prolonging his life, was he allowed to live under strict surveillance in Florence, needing a special indulgence from the Inquisition to permit him even to go to church at Easter. The desire of his last blind days, to have with him his best-beloved pupil, Father Castelli, was granted only under rigid limitation and supervision, though even the papacy could not keep from him the plaudits of the thinkers of Europe. Finally he passed away in his rural “prison”—after five years of blindness—in 1642, the year of Newton’s birth. At that time his doctrines were under anathema in Italy, and known elsewhere only to a few. Hobbes in 1634 tried in vain to procure for the Earl of Newcastle a copy of the earlier Dialogues in London, and wrote: “It is not possible to get it for money....
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I hear say it is called-in, in Italy, as a book that will do more hurt to their religion than all the books of Luther and Calvin, such opposition they think is between their religion and natural reason.”275 Not till 1757 did the papacy permit other books teaching the Copernican system; in 1765 Galileo was still under ban; not until 1822 was permission given to treat the theory as true; and not until 1835 was the work of Copernicus withdrawn from the Index.276
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While modern science was thus being placed on its special basis, a continuous resistance was being made in the schools to the dogmatism which held the mutilated lore of Aristotle as the sum of human wisdom. Like the ecclesiastical revolution, this had been protracted through centuries. Aristotelianism, whether theistic or pantheistic, whether orthodox or heterodox,277 had become a dogmatism like another, a code that vetoed revision, a fetter laid on the mind. Even as a negation of Christian superstition it had become impotent, for the Peripatetics were not only ready to make common cause with the Jesuits against Galileo, as we have seen; some of them were content even to join in the appeal to the Bible.278 The result of such uncritical partisanship was that the immense service of Aristotle to mental life—the comprehensive grasp which gave him his long supremacy as against rival system-makers, and makes him still so much more important than any of the thinkers who in the sixteenth century revolted against him—was by opponents disregarded and denied, though the range and depth of his influence are apparent in all the polemic against him, notably in that of Bacon, who is constantly citing him, and relates his reasoning to him, however antagonistically, at every turn.
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Naturally, the less sacrosanct dogmatism was the more freely assailed; and in the sixteenth century the attacks became numerous and vehement. Luther was a furious anti-Aristotelian,279 as were also some Calvinists; but in 1570 we find Beza declaring to Ramus280 that “the Genevese have decreed, once and for ever, that they will never, neither in logic nor in any other branch of learning, turn away from the teaching of Aristotle.” At Oxford the same code held.281 In Italy, Telesio, who notably anticipates the tone of Bacon as to natural science, and is largely followed by him, influenced Bruno in the anti-Aristotelian direction,282 though it was in a long line from Aristotle that he got his principle of the eternity of the universe. The Spaniard Ludovicus Vives, too (1492–1540), pronounced by Lange one of the clearest heads of his age, had insisted on progress beyond Aristotle in the spirit of naturalist science.283 But the typical anti-Aristotelian of the century was Ramus (Pierre de la Ramée, 1515–1572), whose long and strenuous battle against the ruling school at Paris brought him to his death in the Massacre of St. Bartholomew.284 Ramus hardily laid it down that “there is no authority over reason, but reason ought to be queen and ruler over authority.”285 Such a message was of more value than his imperfect attempt to supersede the Aristotelian logic.
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Bacon, who carried on in England the warfare against the Aristotelian tradition, never ventured so to express himself as against the theological tyranny in particular, though, as we have seen, the general energy and vividness of his argumentation gave him an influence which undermined the orthodoxies to which he professed to conform. On the other hand, he did no such service to exact science as was rendered in his day by Kepler and Galileo and their English emulators; and his full didactic influence came much later into play.
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Like fallacies to Bacon’s may be found in Descartes, whose seventeenth-century reputation as a champion of theism proved mainly the eagerness of theists for a plausible defence. Already in his own day his arguments were logically confuted by both Gassendi and Hobbes; and his partial success with theists was a success of partisanism. It was primarily in respect of his habitual appeal to reason and argument, in disregard of the assumptions of faith, and secondarily in respect of his real scientific work, that he counts for freethought. Ultimately his method undermined his creed; and it is not too much to say of him that, next to Copernicus, Kepler, and Galileo,286 he laid a good part of the foundation of modern philosophy and science,287 Gassendi largely aiding. Though he never does justice to Galileo, from his fear of provoking the Church, it can hardly be doubted that he owes to him in large part the early determination of his mind to scientific methods; for it is difficult to believe that the account he gives of his mental development in the Discours de la Méthode (1637) is biographically true. It is rather the schemed statement, by a ripened mind, of how it might best have been developed. Nor did Descartes, any more than Bacon, live up to the intellectual idea he had framed. All through his life he anxiously sought to propitiate the Church;288 and his scientific as well as his philosophic work was hampered in consequence.
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In England Henry More, who latterly recoiled from his philosophy, still thought his physics had been spoiled by fear of the Church, declaring that the imprisonment of Galileo “frighted Des Cartes into such a distorted description of motion that no man’s reason could make good sense of it, nor modesty permit him to fancy anything nonsense in so excellent an author.”289
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But nonetheless the unusual rationalism of Descartes’s method, avowedly aiming at the uprooting of all his own prejudices290 as a first step to truth, displeased the Jesuits, and could not escape the hostile attention of the Protestant theologians of Holland, where Descartes passed so many years of his life. Despite his constant theism, accordingly, he had at length to withdraw.291 A Jesuit, Père Bourdin, sought to have the Discours de la Méthode at once condemned by the French clergy, but the attempt failed for the time being. France was just then, in fact, the most freethinking part of Europe;292 and Descartes, though not so unsparing with his prejudices as he set out to be, was the greatest innovator in philosophy that had arisen in the Christian era. He made real scientific discoveries, too, where Bacon only inspired an approach and schemed a wandering road to them. He first effectively applied algebra to geometry; he first scientifically explained the rainbow; he at once accepted and founded on Harvey’s discovery of the circulation of the blood, which most physiologists of the day derided; and he welcomed Aselli’s discovery of the lacteals, which was rejected by Harvey.293 And though as regards religion his timorous conformities deprive him of any heroic status, it is perhaps not too much to pronounce him “the great reformer and liberator of the European intellect.”294 One not given to warm sympathy with freethought has avowed that “the common root of modern philosophy is the doubt which is alike Baconian and Cartesian.”295
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Only less important, in some regards, was the influence of Pierre Gassend or Gassendi (1592–1655), who, living his life as a canon of the Church, reverted in his doctrine to the philosophy of Epicurus, alike in physics and ethics.296 It seems clear that he never had any religious leanings, but simply entered the Church on the advice of friends who pointed out to him how much better a provision it gave, in income and leisure, than the professorship he held in his youth at the university of Aix.297 Professing like Descartes a strict submission to the Church, he yet set forth a theory of things which had in all ages been recognized as fundamentally irreconcilable with the Christian creed; and his substantial exemption from penalties is to be set down to his position, his prudence, and his careful conformities. The correspondent of Galileo and Kepler, he was the friend of La Mothe le Vayer and Naudé; and Gui Patin was his physician and intimate.298 Strong as a physicist and astronomer where Descartes was weak, he divides with him and Galileo the credit of practically renewing natural philosophy;
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Newton being Gassendist rather than Cartesian.299 Indeed, Gassendi’s youthful attack on the Aristotelian physics (1624) makes him the predecessor of Descartes; and he expressly opposed his contemporary on points of physics and metaphysics on which he thought him chimerical, and so promoted unbelief where Descartes made for orthodoxy.300 Of the criticisms on his Méditations to which Descartes published replies, those of Gassendi are, with the partial exception of those of Hobbes, distinctly the most searching and sustained. The later position of Hume, indeed, is explicitly taken up in the first objection of Cratérus;301 but the persistent pressure of Gassendi on the theistic and spiritistic assumptions of Descartes reads like the reasoning of a modern atheist.302 Yet the works of Descartes were in time placed on the Index, condemned by the king’s council, and even vetoed in the universities, while those of Gassendi were not, though his early work on Aristotelianism had to be stopped after the first volume because of the anger it aroused.303 Himself one of the most abstemious of men,304 like his master Epicurus (of whom he wrote a Life, 1647), he attracted disciples of another temperamental cast as well as many of his own; and as usual his system is associated with the former, who are duly vilified by orthodoxy, although certainly no worse than the average orthodox.
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Among his other practical services to rationalism was a curious experiment, made in a village of the Lower Alps, by way of investigating the doctrine of witchcraft. A drug prepared by one sorcerer was administered to others of the craft in presence of witnesses. It threw them into a deep sleep, on awakening from which they declared that they had been at a witches’ Sabbath. As they had never left their beds, the experiment went far to discredit the superstition.305 One significant result of the experiment was seen in the course later taken by Colbert in overriding a decision of the Parlement of Rouen as to witchcraft (1670). That Parlement proposed to burn fourteen sorcerers. Colbert, who had doubtless read Montaigne as well as Gassendi, gave Montaigne’s prescription that the culprits should be dosed with hellebore—a medicine for brain disturbance.306 In 1672, finally, the king issued a declaration forbidding the tribunals to admit charges of mere sorcery;307 and any future condemnations were on the score of blasphemy and poisoning. Yet further, in the section of his posthumous Syntagma Philosophicum (1658) entitled De Effectibus Siderum,308 Gassendi dealt the first great blow on the rationalist side to the venerable creed of astrology, assailed often, but to little purpose, from the side of faith; bringing to his task, indeed, more asperity than he is commonly credited with, but also a stringent scientific and logical method, lacking in the polemic of the churchmen, who had attacked astrology mainly because it ignored revelation.
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It is sobering to remember, however, that he was one of those who could not assimilate Harvey’s discovery of the circulation of the blood, which Descartes at once adopted and propounded.
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Such anomalies meet us many times in the history of scientific as of other lines of thought; and the residual lesson is the recognition that progress is infinitely multiplex in its causation. Nothing is more vital in this regard than scientific truth, which is as a light-house in seas of speculation; and those who, like Galileo and Descartes, add to the world’s exact knowledge, perform a specific service not matched by that of the Bacons, who urge right method without applying it. Yet in that kind also an incalculable influence has been wielded. Many minds can accept scientific truths without being thereby led to scientific ways of thought; and thus the reasoners and speculators, the Brunos and the Vaninis, play their fruitful part, as do the mentors who turn men’s eyes on their own vices of intellectual habit. And in respect of creeds and philosophies, finally, it is not so much sheer soundness of result as educativeness of method, effectual appeal to the thinking faculty and to the spirit of reason, that determines a thinker’s influence. This kind of impact we shall find historically to be the service done by Descartes to European thought for a hundred years.
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From Descartes, then, as regards philosophy, more than from any professed thinker of his day, but also from the other thinkers we have noted, from the reactions of scientific discovery, from the terrible experience of the potency of religion as a breeder of strife and its impotence as a curber of evil, and from the practical freethinking of the more open-minded of that age in general, derives the great rationalistic movement, which, taking clear literary form first in the seventeenth century, has with some fluctuations broadened and deepened down to our own day.

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A Short History of Freethought Ancient and Modern, Volume 2 of 2 Third edition, Revised and Expanded, in two volumes, Project Gutenberg eBook #52160

§ 5. Popular Thought in Europe Chapter XIII (continued 1)