What is more important, however, is that so much of knowledge is not knowledge in the ordinary sense of the word, but is “science.” The quotation marks are not used disrespectfully, but to suggest the technical character of scientific material. The layman takes certain conclusions which get into circulation to be science. But the scientific inquirer knows that they constitute science only in connection with the methods by which they are reached. Even when true, they are not science in virtue of their correctness, but by reason of the apparatus which is employed in reaching them. This apparatus is so highly specialized that it requires more labor to acquire ability to use and understand it than to get skill in any other instrumentalities possessed by man. Science, in other words, is a highly specialized language, more difficult to learn than any natural language. It is an artificial language, not in the sense of being factitious, but in that of being a work of intricate art, devoted to a particular purpose and not capable of being acquired nor understood in the way in which the mother tongue is learned. It is, indeed, conceivable that sometime methods of instruction will be devised which will enable laymen to read and hear scientific material with comprehension, even when they do not themselves use the apparatus which is science. The latter may then become for large numbers what students of language call a passive, if not an active, vocabulary. But that time is in the future.
For most men, save the scientific workers, science is a mystery in the hands of initiates, who have become adepts in virtue of following ritualistic ceremonies from which the profane herd is excluded. They are fortunate who get as far as a sympathetic appreciation of the methods which give pattern to the complicated apparatus: methods of analytic, experimental observation, mathematical formulation and deduction, constant and elaborate check and test. For most persons, the reality of the apparatus is found only in its embodiments in practical affairs, in mechanical devices and in techniques which touch life as it is lived. For them, electricity is known by means of the telephones, bells and lights they use, by the generators and magnetos in the automobiles they drive, by the trolley cars in which they ride. The physiology and biology they are acquainted with is that they have learned in taking precautions against germs and from the physicians they depend upon for health. The science of what might be supposed to be closest to them, of human nature, was for them an esoteric mystery until it was applied in advertising, salesmanship and personnel selection and management, and until, through psychiatry, it spilled over into life and popular consciousness, through its bearings upon “nerves,” the morbidities and common forms of crankiness which make it difficult for persons to get along with one another and with themselves. Even now, popular psychology is a mass of cant, of slush and of superstition worthy of the most flourishing days of the medicine man.
Meanwhile the technological application of the complex apparatus which is science has revolutionized the conditions under which associated life goes on. This may be known as a fact which is stated in a proposition and assented to. But it is not known in the sense that men understand it. They do not know it as they know some machine which they operate, or as they know electric light and steam locomotives. They do not understand how the change has gone on nor how it affects their conduct. Not understanding its “how,” they cannot use and control its manifestations. They undergo the consequences, they are affected by them. They cannot manage them, though some are fortunate enough—what is commonly called good fortune—to be able to exploit some phase of the process for their own personal profit. But even the most shrewd and successful man does not in any analytic and systematic way—in a way worthy to compare with the knowledge which he has won in lesser affairs by means of the stress of experience—know the system within which he operates. Skill and ability work within a framework which we have not created and do not comprehend. Some occupy strategic positions which give them advance information of forces that affect the market; and by training and an innate turn that way they have acquired a special technique which enables them to use the vast impersonal tide to turn their own wheels. They can dam the current here and release it there. The current itself is as much beyond them as was ever the river by the side of which some ingenious mechanic, employing a knowledge which was transmitted to him, erected his sawmill to make boards of trees which he had not grown. That within limits those successful in affairs have knowledge and skill is not to be doubted. But such knowledge goes relatively but little further than that of the competent skilled operator who manages a machine. It suffices to
