Kitabı oku: «History of Human Society», sayfa 31
Again, the trades, professions, and occupations of men draw them together in associated groups. It is not infrequent that men engaged in the same profession are thrown together in daily contact, have the same interests, sentiments, and thought, and form in this way a group which stands almost aloof from other groups in social life; tradesmen dealing in a certain line of goods are thrown together in the same way. But the lines in these groupings must not be too firmly drawn, for groups formed on the basis of friendship may cover a field partaking in part of all these different groups. Again, we shall find that the school lays the foundation of early associations, and continues to have an influence in creating social aggregates. Fraternal societies and political parties in the same way form associated groups.
The church at large forms a great organizing centre, the influence of which in political and social life enlarges every day. The church body arranges itself in different groups on the basis of the different sects and denominations, and within the individual church organization there are small groups or societies, which again segregate religious social life. But over and above all these various social groups and classes is the state, binding and making all cohere in a common unity.
The tendency of this social life is to differentiate into more and more groups, positive in character, which renders our social existence complex and difficult to analyze. The social groups overlap one another, and are interdependent in all their relations. In one way the individual becomes more and more self-constituted and independent in his activity; in another way he is dependent on all his fellows for room or opportunity for action.
This complexity of social life renders it difficult to estimate the real progress of society; yet, taking any one of these individual groups, it will be found to be improving continually. School life and school associations show a marked improvement; family life, notwithstanding the various evidences of the divorce courts, shows likewise an improved state as intelligence increases; the social life of the church becomes larger and broader. The spread of literature and learning, the increase of education, renders each social group more self-sustaining and brings about a higher life, with a better code of morals. Even political groups have their reactions, in which, notwithstanding the great room for improvement, they stand for morality and justice. The relations of man to man are becoming better understood every day. His fickleness and selfishness are more readily observed in recent than in former times, and as a result the evils of the present are magnified, because they are better understood; in reality, social conditions are improving, and the fact that social conditions are understood and evils clearly observed promises a great improvement for the future.
Interrelation of Different Parts of Society. – The various social aggregates are closely interrelated and mutually dependent upon one another. The state itself, though expressing the unity of society, is a highly complex organization, consisting of forms of local and central government. These parts, having independent functions, are co-ordinated to the general whole. Voluntary organizations have their specific relation to the state, which fosters and protects them on an independent basis. The school, likewise, has its relation to the social life, having an independent function, yet touching all parts of the social life.
We find the closest interdependence of individuals in the economic life. Each man performs a certain service which he exchanges for the services of others. The wealth which he creates with his own hand, limited in kind, must be exchanged for all the other commodities which he would have. More than this, all people are ranged in economic groups, each group dependent upon all the others – the farmers dependent upon the manufacturers of implements and goods, upon bankers, lawyers, ministers, and teachers; the manufacturers dependent upon the farmers and all the other classes; and so with every class.
This interdependent relation renders it impossible to improve one group without improving the others, or to work a great detriment to one group without injuring the others. If civilization is to be perpetuated and improved, the banker must be interested in the welfare of the farmer, the farmer in the welfare of the banker, both in the prosperity of manufacturers, and all in the welfare of the common laborer. The tendency for this mutual interest to increase is evinced in all human social relations, and speaks well for the future of civilization.
The Progress of the Race Based on Social Opportunities. – Anthropologists tell us that no great change in the physical capacity of man has taken place for many centuries. The maximum brain capacity has probably not exceeded that of the Crô-Magnon race in the Paleolithic period of European culture. Undoubtedly, however, there has been some change in the quality of the brain, increasing its storage batteries of power and through education the utilization of that power. We would scarcely expect, however, with all of our education and scientific development, to increase the stature of man or to enlarge his brain. Much is being done, however, in getting the effective service of the brain not only through natural selective processes, but through education. The improvement of human society has been brought about largely by training and the increased knowledge which it has brought to us through invention and discovery, and their application to the practical and theoretical arts.
All these would have been buried had it not been for the protection of co-operative society and the increased power derived therefrom. Even though we exercise the selective power of humanity under the direction of our best intelligence, the individual must find his future opportunity in the better conditions furnished by society. Granted that individual and racial powers are essential through hereditary development, progress can only be obtained by the expression of these powers through social activity. For it is only through social co-operation that a new power is brought into existence, namely, achievement by mutual aid. This assertion does not ignore the fact that the mutations of progress arise from the brain centres of geniuses, and that by following up these mutations by social action they may become productive and furnish opportunity for progress.
The Central Idea of Modern Civilization. – The object of life is not to build a perfect social mechanism. It is only a means to a greater end, namely, that the individual shall have opportunity to develop and exercise the powers which nature has given him. This involves an opportunity for the expression of his whole nature, physical and mental, for the satisfaction of his normal desires for home, happiness, prosperity, and achievement. It involves, too, the question of individual rights, privileges, and duties.
The history of man reveals to us somewhat of his progress. There is ever before us the journey which he has taken in reaching his present status. The road has been very long, very rough, very crooked. What he has accomplished has been at fearful expense. Thousands have perished, millions have been swept away, that a single idea for the elevation and culture of the race might remain. Deplore it as we may, the end could be reached only thus. The suffering of humanity is gradually lessening, and destruction and waste being stayed, yet we must recognize, in looking to the future, that all means of improvement will be retarded by the imperfection of human life and human conditions.
The central principle, however, the great nucleus of civilization, becomes more clearly defined, in turn revealing that man's happiness on earth, based upon duty and service, is the end of progress. If the achievements of science, the vast accumulations of wealth, the perfection of social organization, the increased power of individual life – if all these do not yield better social conditions, if they do not give to humanity at large greater contentment, greater happiness, a larger number of things to know and enjoy, they must fail in their service. But they will not fail. Man is now a larger creature in every way than ever before. He has better religion; a greater God in the heavens, ruling with beneficence and wisdom; a larger number of means for improvement everywhere; and the desire and determination to master these things and turn them to his own benefit. The pursuit of truth reveals man to himself and God to him. The promotion of justice and righteousness makes his social life more complete and happy. The investigations of science and the advances of invention and discovery increase his material resources, furnishing him means with which to work; and with increasing intelligence he will understand more clearly his destiny – the highest culture of mind and body and the keenest enjoyment of the soul.
SUBJECTS FOR FURTHER STUDY
1. What were the chief causes of aggregation of people?
2. Are there evidences of groups without the beginning of social organization?
3. What is the relation of the individual to society?
4. The basis of national groups.
5. Factors in the progress of the human race.
6. Growth of religious toleration in the world.
7. Name ten "American institutions" that should be perpetuated.
8. Race and democracy.
9. What per cent of the voters of your town take a vital interest in government?
10. The growth of democratic ideas in Europe. In Asia.
11. Study the welfare organizations in your town, comparing objects and results.
12. The trend of population from country to city and its influence on social organization.
13. Explain why people follow the fashions.
CHAPTER XXIX
THE EVOLUTION OF SCIENCE
Science Is an Attitude of Mind Toward Life. – As usually defined, science represents a classified body of knowledge logically arranged with the purpose of arriving at definite principles or truths by processes of investigation and comparison. But the largest part of science is found in its method of approaching the truth as compared with religion, philosophy, or disconnected knowledge obtained by casual observation. In many ways it is in strong contrast with speculative philosophy and with dogmatic theology, both of which lack sufficient data for scientific development. The former has a tendency to interpret what is assumed to have already been established. With the latter the laboratory of investigation of truth has been closed. The laboratory of science is always open.
While scientists work with hypotheses, use the imagination, and even become dogmatic in their assertions, the degree of certainty is always tested in the laboratory. If a truth is discovered to-day, it must be verified in the laboratory or shown to be incorrect or only a partial truth. Science has been built up on the basis of the inquiry into nature's processes. It is all the time inquiring: "What do we find under the microscope, through the telescope, in the chemical and physical reactions, in the examination of the earth and its products, in the observation of the functions of animals and plants, or in the structure of the brain of man and the laws of his mental functioning?" If it establishes an hypothesis as a means of procedure, it must be determined true or abandoned. If the imagination ventures to be far-seeing, observation, experimentation, and the discovery of fact must all come to its support before it can be called scientific.
Scientific Methods. – We have already referred to the turning of the minds of the Greeks from the power of the gods to a look into nature's processes. We have seen how they lacked a scientific method and also scientific data sufficient to verify their assumptions. We have observed how, while they took a great step forward, their conclusions were lost in the Dark Ages and in the early mediaeval period, and how they were brought to light in the later medieval period and helped to form the scholastic philosophy and to stimulate free inquiry, and how the weakness of all systems was manifested in all these periods of human life by failure to use the simple process of observing the facts of nature, getting them and classifying them so as to demonstrate truth. It will not be possible to recount in this chapter a full description of the development of science and scientific thought. Not more can be done than to mention the turning-points in its development and expansion.
Though other influences of minor importance might be mentioned, it is well to note that Roger Bacon (1214-1294) stands out prominently as the first philosopher of the mediaeval period who turned his attitude of mind earnestly toward nature. It is true that he was not free from the taint of dogmatic theology and scholastic philosophy which were so strongly prevailing at the time, but he advocated the discovery of truth by observation and experiment, which was a bold assumption at that time. He established as one of his main principles that experimental science "investigates the secrets of nature by its own competency and out of its own qualities, irrespective of any connection with the other sciences." Thus he did not universalize his method as applicable to all sciences.
Doubtless Roger Bacon received his inspiration from the Greek and Arabian scientists with whom he was familiar. It is interesting that, following the lines of observation and discovery in a very primitive way, he let his imagination run on into the future, predicting many things that have happened already. Thus he says: "Machines for navigation are possible without rowers, like great ships suited to river or ocean, going with greater velocity than if they were full of rowers; likewise wagons may be moved cum impetu inaestimabili, as we deem the chariots of antiquity to have been. And there may be flying-machines, so made that a man may sit in the middle of the machine and direct it by some device; and again, machines for raising great weights."46
In continuity with the ideas of Roger Bacon, Francis Bacon (1561-1626) gave a classification of human learning and laid the real foundation on which the superstructure of science has been built. Between the two lives much had been done by Copernicus, who taught that the earth was not the centre of the universe, and that it revolved on its axis from west to east. This gave the traditions of fourteen centuries a severe jolt, and laid the foundation for the development of the heliocentric system of astronomy. Bacon's classification of all knowledge showed the relationship of the branches to a comprehensive whole. His fundamental theory was that nature was controlled and modified by man. He recognized the influence of natural philosophy, but insisted that the "history mechanical" was a strong support to it.
His usefulness seems to have been in the presentation of a wide range of knowledge distinctly connected, the demonstration of the utility of knowledge, and the suggestion of unsolved problems which should be investigated by observation and experiment. Without giving his complete classification of human learning, it may be well to state his most interesting classification of physical science to show the middle ground which he occupied between mediaeval thought and our modern conception of science. This classification is as follows:
1. Celestial phenomena.
2. Atmosphere.
3. Globe.
4. Substance of earth, air, fire, and water.
5. Genera, species, etc.47
Descartes, following Bacon, had much to do with the establishment of method, although he laid more stress upon deduction than upon induction. With Bacon he believed that there was need of a better method of finding out the truth than that of logic. He was strong in his refusal to recognize anything as true that he did not understand, and had no faith in the mere assumption of truth, insisting upon absolute proof derived through an intelligent order. Perhaps, too, his idea was to establish universal mathematics, for he recognized measurements and lines everywhere in the universe, and recognized the universality of all natural phenomena, laying great stress on the solution of problems by measurement. He was a fore runner of Newton and many other scientists, and as such represents an epoch-making period in scientific development.
The trend of thought by a few leaders having been directed to the observation of nature and the experimentation with natural phenomena, the way was open for the shifting of the centre of thought of the entire world. It only remained now for each scientist to work out in his own way his own experiments. The differentiation of knowledge brought about many phases of thought and built up separate divisions of science. While each one has had an evolution of its own, all together they have worked out a larger progress of the whole. Thus Gilbert (1540-1603) carried on practical experiments and observations with the lodestone, or magnet, and thus made a faint beginning of the study of electrical phenomena which in recent years has played such an important part in the progress of the world. Harvey (1578-1657) by his careful study of the blood determined its circulation through the heart by means of the arterial and venous systems. This was an important step in leading to anatomical studies and set the world far ahead of the medical studies of the Arabians.
Galileo (1564-1642), in his study of the heavenly bodies and the universe, carried out the suggestion of Copernicus a century before of the revolution of the earth on its axis, to take the place of the old theory that the sun revolved around the earth. Indeed, this was such a disturbing factor among churchmen, theologians, and pseudo-philosophers that Galileo was forced to recant his statements. In 1632 he published at Florence his Dialogue on the Ptolemaic and Copernican Systems of the World. For this he was cited to Rome, his book ordered to be burned, and he was sentenced to be imprisoned, to make a recantation of his errors, and by way of penance to recite the seven penitential psalms once a week.
It seems very strange that a man who could make a telescope to study the heavenly bodies and carry on experiments with such skill that he has been called the founder of experimental science could be forced to recant the things which he was convinced by experiment and observation to be true. However, it must be remembered that the mediaeval doctrine of authority had taken possession of the minds of the world of thinkers to such an extent that to oppose it openly seemed not only sacrilege but the tearing down of the walls of faith and destroying the permanent structure of society. Moreover, the minds of all thinkers were trying to hold on to the old while they developed the new, and not one could think of destroying the faith of the church. But the church did not so view this, and took every opportunity to suppress everything new as being destructive of the church.
No one could contemplate the tremendous changes that might have been made in the history of the world if the church could have abandoned its theological dogmas far enough to welcome all new truth that was discovered in God's workshop. To us in the twentieth century who have such freedom of expressing both truth and untruth, it is difficult to realize to what extent the authorities of the Middle Ages tried to seal the fountains of truth. Picture a man kneeling before the authorities at Rome and stating: "With a sincere heart and unfeigned faith I abjure, curse, and detest the said errors and heresies. I swear that for the future I will never say nor assert anything verbally or in writing which may give rise to a similar suspicion against me."48 Thus he was compelled to recant and deny his theory that the earth moves around the sun.
Measurement in Scientific Research. – All scientific research involves the recounting of recurring phenomena within a given time and within a given space. In order, therefore, to carry on systematic research, methods of measuring are necessary. We can thus see how mathematics, although developed largely through the study of astronomy, has been necessary to all investigation. Ticho Brahe and Kepler may be said to have accentuated the phase of accurate measurement in investigation. They specialized in chemistry and astronomy, all measurements being applied to the heavenly bodies. Their main service was found in accurate records of data. Kepler maintained "that every planet moved in an ellipse of which the sun occupied one focus." He also held "that the square of the periodic time of any planet is proportional to the cube of its mean distance from the sun," and "that the area swept by the radius vector from the planet to the sun is proportional to the time."49 He was much aided in his measurements by the use of a system of logarithms invented by John Napier (1614). Many measurements were established regarding heat, pressure of air, and the relation of solids and liquids.
Isaac Newton, by connecting up a single phenomenon of a body falling a distance of a few feet on the earth with all similar phenomena, through the law of gravitation discovered the unity of the universe. Though Newton carried on important investigations in astronomy, studied the refraction of light through optic glasses, was president of the Royal Society, his chief contribution to the sciences was the tying together of the sun, the planets, and the moons of the solar system by the attraction of gravitation. Newton was able to carry along with his scientific investigations a profound reverence for Christianity. That he was not attacked shows that there had been considerable progress made in toleration of new ideas. With all of his greatness of vision, he had the humbleness of a true scientist. A short time before his death he said: "I know not what I may appear to the world; but to myself I seem to have been only like a boy playing on the seashore, and diverting myself in now and then finding a smoother pebble, or a prettier shell, than ordinary, whilst the great ocean of truth lay all undiscovered before me."
Science Develops from Centres. – Bodies of truth in the world are all related one to another. Hence, when a scientist investigates and experiments along a particular line, he must come in contact more or less with other lines. And while there is a great differentiation in the discovery of knowledge by investigation, no single truth can ever be established without more or less relation to all other truths. Likewise, scientists, although working from different centres, are each contributing in his own way to the establishment of universal truth. Even in the sixteenth century scientists began to co-operate and interchange views, and as soon as their works were published, each fed upon the others as he needed in advancing his own particular branch of knowledge.
It is said that Bacon in his New Atlantis gave such a magnificent dream of an opportunity for the development of science and learning that it was the means of forming the Royal Society in England. That association was the means of disseminating scientific truth and encouraging investigation and publication of results. It was a tremendous advancement of the cause of science, and has been a type for the formation of hundreds of other organizations for the promotion of scientific truth.
Science and Democracy. – While seeking to extend knowledge to all classes of people, science paves the way for recognition of equal rights and privileges. Science is working all the time to be free from the slavery of nature, and the result of its operations is to cause mankind to be free from the slavery of man. Therefore, liberty and science go hand in hand in their development. It is interesting to note in this connection that so many scientists have come from groups forming the ordinary occupations of life rather than, as we might expect, from the privileged classes who have had leisure and opportunity for development. Thus, "Pasteur was the son of a tanner, Priestley of a cloth-maker, Dalton of a weaver, Lambert of a tailor, Kant of a saddler, Watt of a ship-builder, Smith of a farmer, and John Ray was, like Faraday, the son of a blacksmith. Joule was a brewer. Davy, Scheele, Dumas, Balard, Liebig, Wöhler, and a number of other distinguished chemists were apothecaries' apprentices."50
Science also is a great leveller because all scientists are bowing down to the same truth discovered by experimentation or observation, and, moreover, scientists are at work in the laboratories and cannot be dogmatic for any length of time. But scientists arise from all classes of people, so far as religious or political belief is concerned. Many of the foremost scientists have been distributed among the Roman Catholics, Anglicans, Calvinists, Quakers, Unitarians, and Agnostics. The only test act that science knows is that of the recognition of truth.
Benjamin Franklin was a printer whose scientific investigations were closely intermingled with the problems of human rights. His experiments in science were subordinate to the experiments of human society. His great contribution to science was the identification of lightning and the spark from a Leyden jar. For the identification and control of lightning he received a medal from the Royal Society. The discussion of liberty and the part he took in the independence of the colonies of America represent his greatest contribution to the world. To us he is important, for he embodied in one mind the expression of scientific and political truth, showing that science makes for democracy and democracy for science. In each case it is the choice of the liberalized mind.
The Study of the Biological and Physical Sciences. – The last century is marked by scientific development along several 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.
The main generalized point of research, if it could be so stated, is the discovery of law and order. This has been demonstrated in the development of chemistry under the atomic theory; physics in the molecular theory; the law of electrons in electricity, and the evolutionary theory in the study of biology. Great advance has been made in the medical sciences, including the knowledge of the nature and prevention of disease. Though a great many new discoveries and, out of new discoveries, new inventions have appeared along specific lines and various sciences have advanced with accuracy and precision, perhaps the evolutionary theory has changed the thought of the world more than any other. It has connected man with the rest of the universe and made him a definite part of it.
The Evolutionary Theory. – The geography of the earth as presented by Lyell, the theory of population of Malthus, and the Origin of the Species and the Descent of Man by Darwin changed the preconceived notions of the creation of man. Slowly and without ostentation science everywhere had been forcing all nature into unity controlled by universal laws. Traditional belief was not prepared for the bold statement of Darwin that man was part of the slow development of animal life through the ages.
For 2,000 years or more the philosophic world had been wedded to the idea of a special creation of man entirely independent of the creation of the rest of the universe. All conceptions of God, man, and his destiny rested upon the recognition of a separate creation. To deny this meant a reconstruction of much of the religious philosophy of the world. Persons were needlessly alarmed and began to attack the doctrine on the assumption that anything interfering with the long-recognized interpretation of the relation of man to creation was wrong and was instituted for the purpose of tearing down the ancient landmarks.
Darwin accepted in general the Lamarckian doctrine that each succeeding generation would have new characters added to it by the modification of environmental factors and by the use and disuse of organs and functions. Thus gradually under such selection the species would be improved. But Darwin emphasized selection through hereditary traits.
Subsequently, Weismann and others reinterpreted Darwin's theory and strengthened its main propositions, abandoning the Lamarckian theory of use and disuse. Mendel, De Vries, and other biologists have added to the Darwinian theory by careful investigations into the heredity of plants and animals, but because Darwin was the first to give clear expression to the theory of evolution, "Darwinism" is used to express the general theory.
Cosmic evolution, or the development of the universe, has been generally acknowledged by the acceptance of the results of the studies of geology, astronomy, and physics. History of plant and animal life is permanently written in the rocks, and their evolutionary process so completely demonstrated in the laboratory that few dare to question it.
Modern controversy hinges upon the assumption that man as an animal is not subjected to the natural laws of other animals and of plants, but that he had a special creation. The maintenance of this belief has led to many crude and unscientific notions of the origin of man and the meaning of evolution.
Evolution is very simple in its general traits, but very complex in its details. It is a theory of process and not a theory of creation. It is continuous, progressive change, brought about by natural forces and in accordance with natural laws. The evolutionist studies these changes and records the results obtained thereby. The scientist thus discovers new truths, establishes the relation of one truth to another, enlarges the boundary of knowledge, extends the horizon of the unknown, and leaves the mystery of the beginning of life unsolved. His laboratory is always open to retest and clarify his work and to add new knowledge as fast as it is acquired.
