The sixteenth century thus marks the rise of modern scientific inquiry, and the beginnings of the study of modern science. The number of scholars engaged in the study was still painfully small, and the religious prejudice against which they worked was strong and powerful, but in the work of these few men we have not only the beginnings of the study of modern astronomy, physics, chemistry, metallurgy, medicine, anatomy, physiology, and natural history, but also the beginnings of a group of men, destined in time to increase greatly in number, who could see straight, and who sought facts regardless of where they might lead and what preconceived ideas they might upset. How deeply the future of civilization is indebted to such men, men who braved social ostracism and often the wrath of the Church as well, for the, to them, precious privilege of seeing things as they are, we are not likely to over- estimate. In time their work was destined to reach the schools, and to materially modify the character of all education.
[Illustration: FIG. 118. FRANCIS BACON (1561-1626)]
HUMAN REASON IN THE INVESTIGATION OF NATURE. To the English statesman and philosopher, Francis Bacon, more than to any one else, are we indebted for the proper formulation and statement of this new scientific method. Though not a scientist himself, he has often been termed "the father of modern science." Seeing clearly the importance of the new knowledge, he broke entirely with the old scholastic deductive logic as expressed in the Organon, of Aristotle, and formulated and expressed the methods of inductive reasoning in his Novum Organum, published in 1620. In this he showed the insufficiency of the method of argumentation; analyzed and formulated the inductive method of reasoning, of which his study as to the nature of heat [10] is a good example; and pointed out that knowledge is a process, and not an end in itself; and indicated the immense and fruitful field of science to which the method might be applied. By showing how to learn from nature herself he turned the Renaissance energy into a new direction, and made a revolutionary break with the disputations and deductive logic of the Aristotelian scholastics which had for so long dominated university instruction.
In formulating the new method he first pointed out the defects of the learning of his time, which he classified under the head of "distempers," three in number, and as follows:
1. Fantastic learning: Alchemy, magic, miracles, old-wives, tales, credulities, superstitions, pseudo-science, and impostures of all sorts inherited from an ignorant past, and now conserved as treasures of knowledge.
2. Contentious learning: The endless disputations of the Scholastics about questions which had lost their significance, deductive in character, not based on any observation, not aimed primarily to arrive at truth, "fruitful of controversy, and barren of effect."
3. Delicate learning: The new learning of the humanistic Renaissance, verbal and not real, stylish and polished but not socially important, and leading to nothing except a mastery of itself.
As an escape from these three types of distempers, which well characterized the three great stages in human progress from the sixth to the fifteenth centuries, Bacon offered the inductive method, by means of which men would be able to distinguish true from false, learn to see straight, create useful knowledge, and fill in the great gaps in the learning of the time by actually working out new knowledge from the unknown. The collecting, organizing, comparing, questioning, and inferring spirit of the humanistic revival he now turned in a new direction by organizing and formulating for the work a new Organum to take the place of the old Organon of Aristotle. In Book 1 he sets forth some of the difficulties (R. 208) with which those who try new experiments or work out new methods of study have to contend from partisans of old ideas.
The Novum Organum showed the means of escape from the errors of two thousand years by means of a new method of thinking and work. Bacon did not invent the new method—it had been used since man first began to reason about phenomena, and was the method by means of which Wycliffe, Luther, Magellan, Copernicus, Brahe, and Gilbert had worked—but he was the first to formulate it clearly and to point out the vast field of new and useful knowledge that might be opened up by applying human reason, along inductive lines, to the investigation of the phenomena of nature. His true service to science lay in the completeness of his analysis of the inductive process, and his declaration that those who wish to arrive at useful discoveries must travel by that road. As Macaulay well says, in his essay on Bacon:
He was not the maker of that road; he was not the discoverer of that road; he was not the person who first surveyed and mapped that road. But he was the person who first called the public attention to an inexhaustible mine of wealth which had been utterly neglected, and which was accessible by that road alone.