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On a line drawn from the center of the earth to the center of the moon there is a point where the "weights" of the two bodies are said in our physics exactly to balance, and it lies, says our physics, "2,900 miles from the center of the earth, and 1,100 miles from the surface." This is the earth's "laya center" of the Eastern physics.
Astronomy had no manifest connection with terrestrial physics before the publication of the "Principia"; that of chemistry with physics is of still more modern revelation; that of physics and chemistry with physiology, has been stoutly denied within the recollection of most of us, and perhaps still may be. Or, to take a case which affords a closer parallel with that of medicine.
He will take a dilettante interest in art, or devote his attention to some branch of science botany, for example, or physics, astronomy, history, and find a great deal of pleasure in such studies, and amuse himself with them when external forces of happiness are exhausted or fail to satisfy him any more. Of a man like this it may be said that his centre of gravity is partly in himself.
Nellie had been long dead, now, and her son had grown up into a vigorous, enthusiastic young person, burning his big hands with experiments in physics and chemistry, reading the Scientific American late into the night, until his broad shoulders were threatened with a permanent stoop, and his eager eyes blinked wearily at breakfast, anxious to disprove certain accepted theories, and as eager to introduce others, unaffected, irreverent, and irresistibly buoyant.
Born at Boston, and educated at the Lawrence Scientific School, his first work was in the field of physics, but in 1876, he was appointed professor of astronomy and geodesy, and director of the Harvard observatory, which, under his management, has become of the first importance.
We might say, adhering to the standpoint of physics, that two aspects of different things belong to the same perspective when they are in the same place. But this would not really help us, since a "place" has not yet been defined. Can we define what is meant by saying that two aspects are "in the same place," without introducing anything beyond the laws of perspective and dynamics?
Had the facts of human nature and human history been seriously considered, we should have no Republic of Plato, no Utopia of More; the world would be a very different place from what it is; for these cloudy cities, the laws of whose architecture seem contrary to all the teachings of physics, yet gild with their glory and darken with their shadows the solid temples and streets beneath them.
In this way there arises the idea of a two-fold metaphysic a metaphysic of nature and a metaphysic of morals. Physics will thus have an empirical and also a rational part. It is the same with Ethics; but here the empirical part might have the special name of practical anthropology, the name morality being appropriated to the rational part.
Philosophy, mathematics, physics, metaphysics, or science of any kind have I never learned, except only the science of Heraldry, which you have taught me, with a few other things." "Oh!" She wondered how a man could exist at all without learning these things. "Not any science at all? How can any one live without some science?"
During the nineteenth century progress in physics and mechanics overturned traditions thousands of years had painfully toiled to erect. What is to happen when man comes at last to experiment upon himself like a god, dealing not only with the materials without, but also with the very constituents of his innermost being? Will he not then indeed become a god?
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