Scientific discovery

“ My success in your cause must be attributed to my having followed the path of experiment and induction discovered by philosophers who have preceded me: willingly would I divide your plaudits with other men of science, and claim much for the general glory of scientific discovery in a long course of ages. ”

“ We know that in science discovery succeeds discovery. There is nothing certain about a scientific book except that it will be wrong in five or ten years. Only now and then does some law-giver in science, some Newton or Darwin, descend the mount of discovery, bearing eternal and lasting laws of nature, writ by Nature's God. ”

“ The advance of scientific knowledge—the astonishing discovery of the atom and the cell, and of the unsubstantially or unmateriality, so to speak, of matter itself, and of the elusiveness of energy and life, as indicated by the newer theories of the nature of the ether, and the acceptance of thought-transference as a physical or psychological fact—these and other remarkable scientific discoveries which are leading science to what is seemingly the borderline of a world beyond the cognizance of the bodily senses, have powerfully affected the rationalism and idealism of the present day. ”

“ Indeed, the confirmation is so remote and yet so close, so unexpected and yet so strong, that the new phenomena almost seem to be a direct manifestation of the molecular motion which our theory assumes; and when a new discovery thus confirms the accuracy of a previous generalization, and gives us additional reason to believe that the glimpses we have gained into the order of Nature are trustworthy, it excites, with reason, among scientific scholars the warmest interest. ”

“ Much is Still to be Discovered.
“To many,” says Sir Michael Foster, Professor of Physiology at Cambridge, “scientific knowledge seems to be advancing by leaps and bounds; every day brings its fresh discovery, opening up strange views, turning old ideas upside down. ”

“ For an Art of Discovery is not possible. At each step of the investigation are needed Invention, Sagacity, Genius,—elements which no art can give. We may hope in vain, as Bacon hoped, for an Organ which shall enable all men to construct Scientific Truths, as a pair of compasses enables all men to construct exact circles2. This cannot be. The practical results of the Philosophy of Science must be rather classification and analysis of what has been done, than precept and method for future doing. ”

“ In scientific research this accumulation of associates has been methodized by Mill as ‘four methods of experimental inquiry.’ By the method of Agreement, of Difference, of Residues, and of Concomitant Variations, we make certain lists of cases, and by ruminating these lists in our minds the cause we seek will be more likely to emerge. But the final stroke of discovery is only prepared, not effected by them. The brain tracts must, of their own accord, shoot the right way at last, or we shall still grope in darkness. ”

“ Almost all the best scientific work has been done under the guidance of hypotheses; and purely accidental discoveries have been rare and usually insignificant. In fact, in many branches of science the word invention should be used rather than discovery. ”

“ I am not a practical chemist seeking the mysteries of nature in the laboratory, nor a professional scientist exploring the fields of original research; but, like La Place, Comte, Herbert Spencer and others, I formulate my theories and scientific hypotheses from the latest and best established facts of science as I see it. ”

“ Call it what we will, the faculty of likely guessing, of making probable hypotheses, of conceiving in all its circumstances the past situation or the latent and supramicroscopical situation out of which a phenomenon has emerged, is one of the most important of the scientific man's special gifts. It is by virtue of it that the greatest advancements of knowledge have been achieved, the cardinal discoveries in Molar and Molecular Physics, Biology, Geology, and all departments of Science. ”

“ Modern progress is the result of two factors: Discoveries of the laws of nature and of actions or possibilities in nature, and the application of such discoveries to practical purposes. The first is the work of the scientific investigator, the second that of the inventor. ”

“ The Study of the Biological and Physical Sciences.—The last century is marked by scientific development along several {466} rather distinct lines as follows: the study of the earth, or geology; animal and vegetable life, or biology; atomic analysis, or chemistry; biochemistry; physics, especially that part relating to electricity and radioactivity; and more recently it might be stated that investigations are carried on in psychology and sociology, while mathematics and astronomy have made progress. ”

“ Whether we examine the course of the planets or the world of the animalculæ; to whatever field of physical nature our research is turned, the uniform, invariable result of scientific enquiry is to show that even the most apparently irregular and surprising phenomena are governed by natural antecedents, and are parts of one great connected system. ”

“ Consequently, biological research, in order to be scientific, requires a special modification of method, because the new factors of sensation and consciousness come into play in biology—factors which do not exist in astronomy, or geology, in mechanics, physics, or chemistry. ”

“ It is this study which has given science its present-day prominence. In the world of intellect, doubtless, the most marked features in the history of the past century have been the extraordinary advances in scientific knowledge and investigation, and in the position held by the men of science with reference to those engaged in other pursuits. ”

“ It is a general truth that the physical sciences of light and heat are based upon mechanical conditions of the particles of matter; that the science of chemistry is founded upon physics; that biological phenomena are dependent upon physical and chemical conditions; that psychological subjects are based upon biology; and that biological science cannot progress excepting in proportion to the advance of the sciences on which it is based. ”

“ And when, passing from these material fruits, you consider the purely intellectual triumphs of physical science, such as those which have been gained with the telescope, the microscope, and the spectroscope, you can not wonder at the esteem in which these branches of study are held in this practical age of the world. ”

“ Man constructed a science of numbers, of the stars, of molar and molecular masses, of plants, of stones, and of creeping things, before he realized that he was himself an object capable of receiving scientific attention. ”

“ For science does not merely mean acquaintance with phenomena in their contingent or isolated occurrence, manifold and varied as that may be; it is the discovery and establishment of the laws and general modes of occurrence. Without this we might collect curiosities, but we should not have science. And to discover this network of uniformities throughout all phenomena, in the movements of the heavenly bodies and in the living substance of the cell alike, is the primary aim of all investigation. ”

“ Hence, while Chemistry and Biology, even apart from the possibility of their conversion into branches of applied Mechanics, are essentially descriptive sciences, the task fulfilled by them, so far as they use qualitative and teleological categories, is one of æsthetic and historical rather than of properly scientific description. ”

“ That same science which fills our cabinets and herbariums, and chambers of natural history, with mute stones and shells and plants and dead birds and insects—that same science that fills our scientific volumes with coloured pictures true as life itself, and letter-press of prose description—that same science that anatomises the physical frame with microscopic nicety,—in the hand of its master, found in the soul, that which had most need of science ”

“ Again, in other of your classes, in Chemistry, in Astronomy, in Natural History, besides acquiring groups of facts, the student has a glimpse of the method by which they were discovered, of the type of inference to which the discovery conforms, so that [Pg 20] the discovery of a new comet, the detection of a new species, the invention of a new chemical compound, each becomes a lesson of the most beautiful and impressive kind in the art of reasoning. ”

“ I think, too, that the human interest of science should always be encouraged. I mean that those classical experiments, by which great men have advanced human knowledge, should be shown: and performed moreover by the original methods, e.g. the discoveries of Black, Priestley and Cavendish.
After all, the real fun of science begins when one finds out something that was not known before. This is what is rather pompously called original research. It is interesting to see in my father’s life how the sporting instinct gave way to the love of discovery. ”

“ In order to attain truth respecting biology, therefore, the facts concerning sensation and consciousness, and their relation with, or the way in which these new factors modify the facts of, physics and chemistry, must be carefully considered in this higher state, which we call life, or the investigation is not scientific, no matter how interesting as an intellectual exercise. ”

“ The actual attitude of the investigators and makers of new knowledge of nature is stated in a few words which I wrote ten years ago: "The whole order of nature, including living and lifeless matter—from man to gas—is a network of mechanism, the main features and many details of which have been made more or less obvious to the wondering intelligence of mankind by the labour and ingenuity of scientific investigators. ”

“ Each has, however, contributed to the advance of the other, and the vast additions to knowledge gained by scientific exploration have in large degree provided the materials from which the present structure of science has been built. As once for religion, so now for science men plunge into the unknown ”

“ In the earlier stage of physical research, all observation and experiment lead forward to general results, which gain ready acceptance because they may be said to be involved in scientific procedure itself. ”

“ Visiting Europe, he made the acquaintance of many of the foremost scientific investigators, became a student in university lecture rooms and laboratories, an interested hearer in scientific conventions, and a correspondent of leading men of science at home and abroad. As a result, he came to the conclusion that the hypothesis of evolution is the only one which explains various leading facts in natural science. ”

“ If we inquire what have been the most important scientific discoveries—that is, those which have not been mere applications, but which have opened new fields of research—made during the last forty years, we shall find among them those of spectral analysis, the transformation of forces, the ancient extension of the glaciers, the antiquity of man and prehistoric studies, evolution and natural selection, alternating generations, and deep-sea explorations. ”

“ We believe that there is no physical truth which stands isolated, but every new discovery in physical science opens the way for other truths and discoveries. If naturalists can spend days and weeks in examining and commenting on a new discovery in botany or zoölogy ”

“ And it is quite as undeniable that the current of experimental research and investigation is setting, with equal rapidity, in the same direction. According to the views of many of our more advanced chemists, physiologists, and other scientific and speculative writers and thinkers--those whose experimental investigations have, it is claimed, reached the ultimate implications of all material substance--there are but two immutable, indestructible, and thoroughly persistent elements in the universe--Matter and Motion. ”

“ Anyone conversant with a single branch of Natural Science is aware that experiment, as well as observation, is necessary. Who would expect discoveries in physics, or in chemistry, without laboratories and experiments? Do not botanists investigate the functions of plants by dissection, by microscopic and chemical investigation, and by experiment? ”

“ Let me admit the enormous value, the wonder of its results in mechanics, in all the physical sciences, in chemistry, even in physiology,—but what is its value beyond that? Is the scientific method of value in biology? The great advances made by Darwin and his school in biology were not made, it must be remembered, by the scientific method, as it is generally conceived, at all. His was historical research. He conducted research into pre-documentary history. ”

“ But such ephemeral discoveries are simply indicative of an unhappily general tendency among modern scientists—that of hastening to announce discoveries, and to attach one's name to something new, before the supposed discovery has been submitted to the test of searching experiment. ”

“ In more recent times biology has been enriched with an enormous amount of facts for which we are indebted to the labors of naturalists, or even of mere breeders, as also to the labors of anatomists and clinicians, but, above all, to researches in experimental physiology, wherein the application of physical-science methods to the discovery of the laws of vital phenomena has been attended with brilliant success. ”

“ The discoveries of science are the discoveries of the laws of nature, and like nature do not go by leaps. Even Newton and Einstein, Harvey and Darwin, built on the past and on their predecessors. Seldom indeed has a great discoverer or inventor wandered lonely as a cloud. Great inventions have always been parts of an evolution, the culmination at a particular moment of an antecedent process. ”

“ A scientific classification, on the other hand, aims at the utmost comprehensiveness, ransacking the whole world from the depths of the earth to the remotest star for new objects, and scrutinising everything with the aid of crucible and dissecting knife, microscope and spectroscope, to find the qualities and constitution of everything, in order that it may be classed among those things with which it has most in common and distinguished from those other things from which it differs. ”