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phenomena of heat, motion, and their effective forces in the physical world to illustrate corresponding facts and forces in the social original: "societary" world. This resulted in showing that, with societies as with individual men, physical and mental development, health, and life have always grown as the speed of circulation the movement of goods, money, and ideas through a community increased, and declined whenever that circulation was slowed or destroyed.
Since then, there have been many important scientific discoveries, chief among which are those by means of which it has been definitively established that—
"Power or energy, like matter, can neither be created nor destroyed: although ever changing in form, its total quantity in the universe remains constant and unalterable. Every manifestation of force must have come from a pre-existing equivalent force, and must give rise to a subsequent and equal amount of some other force. When, therefore, a force or effect appears, we are not at liberty to assume that it was self-originated, or came from nothing; when it disappears, we are forbidden to conclude that it is annihilated. We must search and find where it came from and where it has gone; that is, what produced it and what effect it has itself produced. These relations among the modes of energy are currently known by the phrases Correlation and Conservation of Force."* Edward L. Youmans, Correlation and Conservation of Forces*, p. xiii.
As we are assured, the law demonstrated here might—
"Well have been proclaimed the highest law of all science—the most far-reaching principle that adventurous reason has discovered in the universe. Its stupendous reach spans all orders of existence. Not only does it govern the movements of the heavenly bodies, but it presides over the birth original: "genesis" of the constellations; not only does it control those radiant floods of power which fill the eternal spaces—bathing, warming, lighting, and giving life to our planet—but it rules the actions and relations of men, and regulates the march of earthly affairs. Nor is its authority original: "dominion" limited to physical phenomena; it prevails equally in the world of mind, controlling all the faculties and processes of thought and feeling. The star-suns of the remoter galaxies shoot their radiations across the universe; and although the..."