Empirical science

“ It must be remembered, however, that hypotheses as to such imperceptible objects are only valuable so far as they serve as connecting-links by which we may calculate sensible events from sensible data. Whatever intermediate links empirical science may find it useful to assume, it invariably takes the sensible occurrences of the phenomenal physical order as the starting-point, and again as the goal of its inferences. ”

“ Thus for the most part chemistry is yet an empirical science occupied with the registration of immense numbers of disconnected facts, which may at some future time become the basis of a greatly extended theory. ”

“ The empirical sciences, as previously defined, appear to fall into two main classes, distinguished by a difference which corresponds to that often taken in the past as the criterion by which science is to be separated from philosophy. We may study the facts of temporal sequence either with a view to the actual control of future sequences or with a view to detecting under the sequence some coherent purpose. ”

“ In the first place, if the interpolation is to be more than empirical, we must have not only the experimental results, but the laws which they obey—we must in fact go through the complete process of scientific investigation. ”

“ A conception used by any empirical science is an ideal tool, or a sort of mechanical contrivance. Using it, we work over the data of our common experience until these data Page:The World and the Individual, Second Series (1901) .djvu/224 cation, of description, of experiment, and of prediction, which are as material in their embodiment as the works of an industrial art. While science deals with natural facts in a far more universal way than does any industrial art, its purposes are no less human than are those of its fellow. Both coöperate to the end of man’s mastery over Nature. ”

“ Therefore rough empirical generalizations have a definite place in science, in spite of not being exact of universal. They are the data for more exact laws, and the grounds for believing that they are USUALLY true are stronger than the grounds for believing that the more exact laws are ALWAYS true. ”

“ Theory yields the greatest possible assistance in applying the method of means. For if we have a great number of empirical measurements, each representing the joint effect of a number of causes, our object will be to take the mean of all those in which the effect to be measured is present, and compare it with the mean of the remainder in which the effect is absent, or acts in the opposite direction. ”

“ Those sciences, which thus got the name of philosophy, we call empirical sciences, for the reason that they take their departure from experience. Still the essential results which they aim at and provide, are laws, general propositions, a theory—the thoughts of what is found existing. ”

“ By empirical knowledge we mean such as is derived directly from the examination of detached facts, and rests entirely on those facts, without corroboration from other branches of knowledge. It is contrasted with generalised and theoretical knowledge, which embraces many series of facts under a few comprehensive principles, so that each series serves to throw light upon each other series of facts. ”

“ From the knowledge thus obtained a set of verified general rules must be worked out with which all the observed facts and phenomena are shown to be in accord. Then a science has been erected. There is no possibility of conflict between empirical and scientific knowledge. The discovery of a single fact, at variance with the supposed general laws bearing on any subject, is sufficient to overthrow the entire structure which had been accepted as a science. ”

“ To constitute an empirical science is to show that the difference between different phenomena is due simply to 'circumstances.' The explanation of the facts becomes sufficient when the 'law' can be stated, as that of a unit of constant properties placed in varying positions. This corresponds to the procedure in the physical sciences, where the ultimate aim is to represent all laws as corresponding to the changes of position of uniform atoms. In social and political changes the goal is the same. ”

“ It may happen, however, that empirical is an epithet applicable only to the form of scientific exposition; whilst intuitive sagacity has arranged what are mere phenomena, according to the essential sequence of the notion. ”

“ Yet without what I have just proposed to call the ‘leading ideas’ of a science, that is, its principles of an unverifiable and irrefutable character, suggested, but not to be finally tested, by experience, the hypotheses in the narrower sense would lack that guidance which, as M. Poincaré has shown, the larger ideas of science give to empirical investigation. ”

“ But while we are justified in extending an empirical law beyond the limits within which it has been [page 268] observed to hold good, it is a mistake to suppose that the main work of science is the collection of empirical laws, and that the only scientific inference is the inference from the observed prevalence of an empirical law to its continuance. ”

“ The interest in the formulation of general rules for practical interference with nature, again, necessarily dictates the form which our scientific descriptions will take, and is thus the source of those practical postulates of empirical science with which we have already made some acquaintance. 284It compels us to assume, in the first place, as an indispensable condition of success in our descriptions, that there are situations in the physical order which may be treated with sufficient accuracy for our practical purposes, as recurring identically ”

“ I shall subsequently point out that even the establishment of a wide and true law of nature is but the starting-point for the discovery of exceptions and divergences giving a new scope to empirical discovery. ”

“ We have reason to hope that the empirical processes which are at present employed will be replaced by scientific methods, the trustworthiness of which no one will be able to put in doubt, and the efficacy of which will endure every test. ”

“ Further, logic having for its chief business the methodology of science, the development of knowledge from empirical data, it ought to include a theory of knowledge, but it should not so far depart from its subjective limits as to include within its province the discussion of metaphysical implications or a theory of being. ”

“ But we must be able to combine empirical tests with subjective analysis, before the intellectual process can be completed which authorizes us to determine whether any given production reaches that highest grade of excellence implied in its being "true to nature." ”

“ It is no disparagement, therefore, to the science of Human Nature, that those of its general propositions which descend sufficiently into detail to serve as a foundation for predicting phenomena in the concrete, are for the most part only approximately true. But in order to give a genuinely scientific character to the study, it is indispensable that these approximate generalizations, which in themselves would amount only to the lowest kind of empirical laws, should be connected deductively with the laws of nature from which they result ”

“ The practical procedure and practical assumptions of modern experimental science, since they make thinking essentially and not merely accidentally a process of discovery, seem irreconcilable with both the empirical and transcendental interpretations. ”

“ But all true metaphysics is taken from the essential nature of the thinking faculty itself, and therefore in nowise invented, since it is not borrowed from experience, but contains the pure operations of thought, that is, conceptions and principles à priori, which the manifold of empirical presentations first of all brings into legitimate connection, by which it can become empirical knowledge, i.e. experience. ”

“ In Newspeak there is no word for “Science”. The empirical method of thought, on which all the scientific achievements of the pastwere founded, is opposed to the most fundamental principles of Ingsoc. ”

“ We have seen in the last chapter that there is a point of generality at which empirical laws become as certain as laws of nature, or, rather, at which there is no longer any distinction between empirical laws and laws of nature. ”

“ The empirical law derives whatever truth it has from the causal laws of which it is a consequence. If we know those laws, we know what are the limits to the derivative law; while, if we have not yet accounted for the empirical law--if it rests only on observation--there is no safety in applying it far beyond the limits of time, place, and circumstance in which the observations were made. ”

“ An empirical law, then, is an observed uniformity, presumed to be resolvable into simpler laws, but not yet resolved into them. The ascertainment of the empirical laws of phenomena often precedes by a long interval the explanation of those laws by the Deductive Method ”

“ What we have said so far is that there have been hitherto certain observed causal laws, and that all the empirical evidence we possess is compatible with the view that everything, both mental and physical, so far as our observation has extended, has happened in accordance with causal laws. ”

“ While many empirical conclusions are, roughly speaking, correct; while they are exact enough to be of great help in practical life; while the presages of a weatherwise sailor or hunter may be more accurate, within a certain restricted range, than those of a scientist who relies wholly upon scientific observations and tests; while, indeed, empirical observations and records furnish the raw or crude material of scientific knowledge, yet the empirical method affords no way of discriminating between right and wrong conclusions. ”

“ All science is based upon experience and consists in subjecting the data furnished by the senses to a rational method of investigation. Induction, analysis, comparison, observation, experiment, are the chief instruments of such a rational method. ”

“ The empirical rule is, therefore, no final law, but is capable of explaining, especially when true, e.g., the succession of a certain condition of weather from certain meteorological signs, the improvement of species through crossing, the fact that some alloys are harder than their components, and so on. ”

“ Scientific inquirers give the name of Empirical Laws to those uniformities which observation or experiment has shown to exist, but on which they hesitate to rely in cases varying much from those which have been actually observed, for want of seeing any reason why such a law should exist. ”

“ In conformity with the character of my former writings, as well as with the labors in which I have been engaged during my scientific career, in measurements, experiments, and the investigation of facts, I limit myself to the domain of empirical ideas. ”

“ No man of science, surely, holds that all statements of the laws of phenomena are equally well ‘proved’ by observation and experiment. They do hold that such a proposition as that of ‘the uniformity of nature,’ considered as a ‘law of phenomena,’ is founded on observation and experiment, as fully as any proposition of natural mode can be. ”

“ We may say that we know some principle a-priori, without the need of empirical verification, e.g. that our sense-data have causes other than themselves, and that something can be known about these causes by inference from their effects. This way has been often adopted by philosophers. It may be necessary to adopt this way to some extent, but in so far as it is adopted physics ceases to be empirical or based upon experiment and observation alone. ”

“ The empirical method inevitably magnifies the influences of the past; the experimental method throws into relief the possibilities of the future. The empirical method says, "Wait till there is a sufficient number of cases;" ”

“ All knowledge that something exists must be in part dependent on experience. When anything is known immediately, its existence is known by experience alone; when anything is proved to exist, without being known immediately, both experience and a priori principles must be required in the proof. Knowledge is called empirical when it rests wholly or partly upon experience. ”

“ In other words, an empirical law is a generalization, of which, not content with finding it true, we are obliged to ask, why is it true? knowing that its truth is not absolute, but dependent on some more general conditions, and that it can only be relied on in so far as there is ground of assurance that those conditions are realized. ”

“ Thus our intuitive knowledge, which is the source of all our other knowledge of truths, is of two sorts: pure empirical knowledge, which tells us of the existence and some of the properties of particular things with which we are acquainted, and pure a priori knowledge, which gives us connections between universals, and enables us to draw inferences from the particular facts given in empirical knowledge. Our derivative knowledge always depends upon some pure a priori knowledge and usually also depends upon some pure empirical knowledge. ”

“ Not that they begin later to be studied; on the contrary, they are the earliest cultivated, since in our abstract investigations we necessarily set out from spontaneous facts. But though we may make empirical generalizations, we can form no scientific theory of concrete phaenomena until the laws which govern and explain them are first known ”

“ By combining, however, the exact laws of the greater causes, and of such of the minor ones as are sufficiently known, with such empirical laws or such approximate generalizations respecting the miscellaneous variations as can be obtained by specific observation, we can lay down general propositions which will be true in the main, and on which, with allowance for the degree of their probable inaccuracy, we may safely ground our expectations and our conduct. ”

“ If, therefore, even one or two of these few instances be insufficiently known, or imperfectly analyzed into their elements, and therefore not adequately compared with other instances, nothing is more probable than that a wrong empirical law will emerge instead of the right one. ”