More magical character of directly transmitted Greek remains.

Suppose we turn to those writings which have been unearthed just as they were in ancient Greek; to the papyri, the lead tablets, the so-called Gnostic gems. How does the proportion of magic in these compare with that in the indirectly transmitted literary remains? If it is objected that the magic papyri[107] are mainly of late date and that they are found in Egypt, it may be replied that they are as old as or older than any other manuscripts we have of classical literature and that its chief storehouse, too, was in Egypt at Alexandria. As for the magical curses written on lead tablets,[108] they date from the fourth century before our era to the sixth after, and fourteen come from Athens and sixteen from Cnidus as against one from Alexandria and eleven from Carthage. And although some display extreme illiteracy, others are written by persons of rank and education. And what a wealth of astrological manuscripts in the Greek language has been unearthed in European libraries by the editors of the Catalogus Codicum Graecorum Astrologorum![109] And occasionally archaeologists report the discovery of magical apparatus[110] or of representations of magic in works of art.

Progress of science among the Greeks.

In thus contending that Hellenic culture was not free from magic and that even the philosophy and science of the ancient Greeks show traces of superstition, I would not, however, obscure the fact that of extant literary remains the Greek are the first to present us with any very considerable body either of systematic rational speculation or of classified collection of observed facts concerning nature. Despite the rapid progress in recent years in knowledge of prehistoric man and Egyptian and Babylonian civilization, the Hellenic title to the primacy in philosophy and science has hardly been called in question, and no earlier works have been discovered that can compare in medicine with those ascribed to Hippocrates, in biology with those of Aristotle and Theophrastus, or in mathematics and physics with those of Euclid and Archimedes. Undoubtedly such men and writings had their predecessors, probably they owed something to ancient oriental civilization, but, taking them as we have them, they seem to be marked by great original power. Whatever may lie concealed beneath the surface of the past, or whatever signs or hints of scientific investigation and knowledge we may think we can detect and read between the lines, as it were, in other phases of older civilizations, in these works solid beginnings of experimental and mathematical science stand unmistakably forth.

Archimedes and Aristotle.

“An extraordinarily large proportion of the subject matter of the writings of Archimedes,” says Heath, “represents entirely new discoveries of his own. Though his range of subjects was almost encyclopædic, embracing geometry (plane and solid), arithmetic, mechanics, hydrostatics and astronomy, he was no compiler, no writer of text-books.... His objective is always some new thing, some definite addition to the sum of knowledge, and his complete originality cannot fail to strike anyone who reads his works intelligently, without any corroborative evidence such as is found in the introductory letters prefixed to most of them.... In some of his subjects Archimedes had no forerunners, e. g., in hydrostatics, where he invented the whole science, and (so far as mathematical demonstration was concerned) in his mechanical investigations.”[111] Aristotle’s History of Animals is still highly esteemed by historians of biology[112] and often evidences “a large amount of personal observations,”[113] “great accuracy,” and “minute inquiry,” as in his account of the vascular system[114] or observations on the embryology of the chick.[115] “Most wonderful of all, perhaps, are those portions of his book in which he speaks of fishes, their diversities, their structure, their wanderings, and their food. Here we may read of fishes that have only recently been rediscovered, of structures only lately reinvestigated, of habits only of late made known.”[116] But of the achievements of Hellenic philosophy and Hellenistic science the reader may be safely assumed already to have some notion.

Exaggerated view of the scientific achievement of the Hellenistic age.

But in closing this brief preliminary sketch of the period before our investigation proper begins, I would take exception to the tendency, prevalent especially among German scholars, to center in and confine to Aristotle and the Hellenistic age almost all progress in natural science made before modern times. The contributions of the Egyptians and Babylonians are reduced to a minimum on the one hand, while on the other the scientific writings of the Roman Empire, which are extant in far greater abundance than those of the Hellenistic period, are regarded as inferior imitations of great authors whose works are not extant; Posidonius, for example, to whom it has been the fashion of the writers of German dissertations to attribute this, that, and every theory in later writers. But it is contrary to the law of gradual and painful acquisition of scientific knowledge and improvement of scientific method that one period of a few centuries should thus have discovered everything. We have disputed the similar notion of a golden age of early Egyptian science from which the Middle and New Kingdoms declined, and have not held that either the Egyptians or Babylonians had made great advances in science before the Greeks. But that is not saying that they had not made some advance. As Professor Karpinski has recently written:

“To deny to Babylon, to Egypt, and to India, their part in the development of science and scientific thinking is to defy the testimony of the ancients, supported by the discoveries of the modern authorities. The efforts which have been made to ascribe to Greek influence the science of Egypt, of later Babylon, of India, and that of the Arabs do not add to the glory that was Greece. How could the Babylonians of the golden age of Greece or the Hindus, a little later, have taken over the developments of Greek astronomy? This would only have been possible if they had arrived at a state of development in astronomy which would have enabled them properly to estimate and appreciate the work which was to be absorbed.... The admission that the Greek astronomy immediately affected the astronomical theories of India carries with it the implication that this science had attained somewhat the same level in India as in Greece. Without serious questioning we may assume that a fundamental part of the science of Babylon and Egypt and India, developed during the times which we think of as Greek, was indigenous science.”[117]

Nor am I ready to admit that the great scientists of the early Roman Empire merely copied from, or were distinctly inferior to, their Hellenistic predecessors. Aristarchus may have held the heliocentric theory[118] but Ptolemy must have been an abler scientist and have supported his incorrect hypothesis with more accurate measurements and calculations or the ancients would have adopted the sounder view. And if Herophilus had really demonstrated the circulation of the blood, so keen an intelligence as Galen’s would not have cast his discovery aside. And if Ptolemy copied Hipparchus, are we to imagine that Hipparchus copied from no one? But of the incessant tradition from authority to authority and yet of the gradual accumulation of new matter from personal observation and experience our ensuing survey of thirteen centuries of thought and writing will afford more detailed illustration.