An Introduction to the History of Science

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Houghton Mifflin, 1917 - Science - 288 pages
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Page 270 - ... sometimes idling and neglecting everything, then once more living the life of a philosopher; often he is busy with politics, and starts to his feet and says and does whatever comes into his head; and, if he is emulous of...
Page 111 - that every particle of matter in the universe attracts every other particle, with a force whose direction is that of the line joining the two, and whose magnitude is directly as the product of their masses, and inversely as the square of their distances from each other.
Page 174 - A thrilling, extending from the chest to the extremities, was almost immediately produced. I felt a sense of tangible extension, highly pleasurable, in every limb; my visible impressions were dazzling and apparently magnified; I heard distinctly every sound in the room, and was perfectly aware of my situation.
Page 200 - The sound spoke eloquently to the geologist; the thousands and thousands of stones, which, striking against each other, made the one dull, uniform sound, were all hurrying in one direction. It was like thinking on time, where the minute that now glides past is irrecoverable. So was it with these stones ; the ocean is their eternity, and each note of that wild music told of one more step towards their destiny.
Page 106 - ... it is to be noted that they have freely admitted men of different religions, countries, and professions of life. This they were obliged to do, or else they would come far short of the largeness of their own declarations. For they openly profess not to lay the foundation of an English, Scotch, Irish, popish, or protestant philosophy, but a philosophy of mankind.
Page 206 - One's mind hurries back over past centuries, and then asks: Could our progenitors have been men like these ? men whose very signs and expressions are less intelligible to us than those of the domesticated animals; men who do not possess the instinct of those animals, nor yet appear to boast of human reason, or at least of arts consequent on that reason.
Page 15 - Euclid's, and show by construction that its truth was known to us, to demonstrate, for example, that the angles at the base of an isosceles triangle are equal...
Page 227 - Two contrary laws seem to be wrestling with each other nowadays; the one, a law of blood and of death ever imagining; new means of destruction and forcing nations to be constantly ready for the battlefield — the other, a law of peace, work and health, ever evolving new means of delivering man from the scourges which beset him. "The one seeks violent conquests, the other the relief of humanity. The latter places one human life above any victory; while the former would sacrifice hundred and thousands...
Page 173 - Heat, then, or that power which prevents the actual contact of the corpuscles of bodies, and which is the cause of our peculiar sensations of heat and cold, may be defined a peculiar motion, probably a vibration of the corpuscles of bodies, tending to separate them.
Page 209 - Malthus on Population"; and being well prepared to appreciate the struggle for existence which everywhere goes on from long-continued observation of the habits of animals and plants, it at once struck me that under these circumstances favorable variations would tend to be preserved, and unfavorable ones to be destroyed. The result of this would be the formation of new species. Here then I had at last got a theory by which to work...

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