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The Philosophy of the Inductive Sciences, Founded Upon Their History, Volum 2
Visualització completa - 1847
action and reaction already antithesis appears apply apprehended assertion assume astronomy Axioms of Geometry bodies causation center of gravity Chapter chemical Chemical Affinity colour conceive conception concerning connexion considered demonstration depend derived Descartes Differential Calculus distinct doctrine elements equal Euclid's Elements existence experience express facts faculties figure fluid force fundamental geometry gravity heat Idea of Cause idea of space images impressions inclined plane Inductive instance involve kind knowledge laws of motion manner mathematical mathematicians matter means measure mecha mechanical sciences mind mode nature necessarily necessary truths Newton nexion objects observation obtained particles peculiar perceive perception phenomena philosophy plane polarity portion position principles produced proof properties proposition proved qualities quantity reasoning reference relations of space remark result retina rience says Sect seen sensations sense solid speculative statical straight lines syllogism termed theory things thought tion true universal velocity vision weight
Pàgina 278 - Secondly, such qualities which in truth are nothing in the objects themselves but powers to produce various sensations in us by their primary qualities, ie by the bulk, figure, texture, and motion of their insensible parts, as colours, sounds, tastes, &c.
Pàgina 384 - Have not the small particles of bodies certain powers, virtues, or forces by which they act at a distance, not only upon the rays of light for reflecting, refracting, and inflecting them, but also upon one another for producing a great part of the phenomena of nature?
Pàgina 429 - All these things being considered, it seems probable to me that God, in the beginning, formed matter in solid, massy, hard, impenetrable, moveable particles, of such sizes and figures, and with such other properties, and in such proportions to space, as most conduced to the end for which He formed them...
Pàgina 429 - ... even so very hard as never to wear or break in pieces, no ordinary power being able to divide what God himself made one in the first creation.
Pàgina 52 - Words convey the mental treasures of one period to the generations that follow ; and laden with this, their precious freight, they sail safely across gulfs of time in which empires have suffered shipwreck, and the languages of common life have sunk into oblivion.
Pàgina 19 - Parallelograms upon the same base and between the same parallels, are equal to one another.
Pàgina 429 - While the particles continue entire, they may compose bodies of one and the same nature and texture in all ages: but should they wear away, or break in pieces, the nature of things, depending on them, would be changed.
Pàgina 278 - Qualities thus considered in bodies are, first, such as are utterly inseparable from the body, in what estate soever it be ; such as in all the alterations and changes it suffers, all the force can be used upon it, it constantly keeps; and such as sense constantly finds in every particle of matter which has bulk enough to be perceived, and the mind finds inseparable from every particle of matter, though less than to make itself singly be perceived by our senses...
Pàgina 42 - knows that there is a mask of theory over the whole face of " nature, if it be theory to infer more than we see. But other •' men, unaware of this masquerade, hold it to be a fact that " they see cubes and spheres, spacious apartments and winding " avenues. And these things are facts to them, because they " are unconscious of the mental operation by which they have " penetrated nature's disguise2".