„Chemical analysis and synthesis go no farther than to the separation of particles one from another, and to their reunion. No new creation or destruction of matter is within the reach of chemical agency. We might as well attempt to introduce a new planet into the solar system, or to annihilate one already in existence, as to create or destroy a particle of hydrogen. All the changes we can produce, consist in separating particles that are in a state of cohesion or combination, and joining those that were previously at a distance.“

—  John Dalton, książka A New System of Chemical Philosophy

Źródło: A New System of Chemical Philosophy (1808), Ch. III. On Chemical Synthesis

Ostatnia aktualizacja 4 czerwca 2020. Historia
John Dalton Fotografia
John Dalton
angielski fizyk i chemik 1766 - 1844

Podobne cytaty

John Dalton Fotografia

„1. Small particles called atoms exist and compose all matter; 2. They are indivisible and indestructible; 3. Atoms of the same chemical element have the same chemical properties and do not transmute or change into different elements.“

—  John Dalton English chemist, meteorologist and physicist 1766 - 1844

A New System of Chemical Philosophy, Part I http://books.google.com/books?id=Wp7QAAAAMAAJ (1808) as quoted by Richard Reeves, A Force of Nature The Frontier Genius of Ernest Rutherford (2008)

Ernest Rutherford Fotografia
Robert Chambers (publisher, born 1802) Fotografia
Willem de Sitter Fotografia
Antoine Lavoisier Fotografia
James Martin (author) Fotografia
Friedrich Dürrenmatt Fotografia
Albert Einstein Fotografia
Isaac Newton Fotografia

„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.“

—  Isaac Newton, książka Opticks, or a Treatise of the Reflections, Refractions, Inflections and Colours of Light

Query 31 : 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? <br/> How these Attractions may be perform'd, I do not here consider. What I call Attraction may be perform'd by impulse, or by some other means unknown to me. I use that Word here to signify only in general any Force by which Bodies tend towards one another, whatsoever be the Cause. For we must learn from the Phaenomena of Nature what Bodies attract one another, and what are the Laws and Properties of the attraction, before we enquire the Cause by which the Attraction is perform'd, The Attractions of Gravity, Magnetism and Electricity, react to very sensible distances, and so have been observed by vulgar Eyes, and there may be others which reach to so small distances as hitherto escape observation; and perhaps electrical Attraction may react to such small distances, even without being excited by Friction
Opticks (1704)
Kontekst: 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; and that these primitive particles, being solids, are incomparably harder than any porous bodies compounded of them, even so very hard as never to wear or break in pieces; no ordinary power being able to divide what God had made one in the first creation. 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.<!-- Book III, Part I, pp.375-376 http://books.google.com/books?id=XXu4AkRVBBoC

Theodore Roosevelt Fotografia
Sri Aurobindo Fotografia

„We have to create strength where it did not exist before; we have to change our natures, and become new men with new hearts, to be born again …“

—  Sri Aurobindo Indian nationalist, freedom fighter, philosopher, yogi, guru and poet 1872 - 1950

Bhawani Mandir, 1905
India's Rebirth
Kontekst: We have to create strength where it did not exist before; we have to change our natures, and become new men with new hearts, to be born again... We need a nucleus of men in whom the Shakti is developed to its uttermost extent, in whom it fills every corner of the personality and overflows to fertilise the earth. These, having the fire of Bhawani in their hearts and brains, will go forth and carry the flame to every nook and cranny of our land.

Erich Fromm Fotografia

„If a society system disintegrates or is destroyed by blows from the outside the society ends in chaos, and a completely new society is built upon its ruins, often using the elements of the destroyed system to build the new. That has happened many times in history. But, what also happens is that the society is not simply destroyed but that the system is changed, and a new system emerges which can be considered to be a transformation of the old one.“

—  Erich Fromm German social psychologist and psychoanalyst 1900 - 1980

Human Nature and Social Theory (1969)
Kontekst: One will be conducive to cooperation and solidarity another social structure to competition, suspiciousness, avarice; another to child-like receptiveness, another to destructive aggressiveness. All empirical forms or human needs and drives have to be understood as results of the social practice (in the last analysis based on the productive forces, class structure, etc., etc.) but they all have to fulfill the functions which are inherent in man’s nature in general, and that is to permit him to relate himself to others and share a common frame of reference, etc. The existential contradiction within man (to which I would now add also the contradiction between limitations which reality imposes on his life, and the virtually limitless imagination which his brain permits him to follow) is what I believe to be one of the motives of psychological and social dynamics. Man can never stand still. He must find solutions to this contradiction, and ever better solutions to the extent to which reality enables him.
The question then arises whether there is an optimal solution which can be inferred from man’s nature, and which constitutes a potential tendency in man. I believe that such optimal solutions can be inferred from the nature of man, and I have recently found it quite useful to think in terms of what in sociology and economy is now often called »system analysis«. One might start with the idea, in the first place, that human personality — just like society — is a system, that is to say, that each part depends on every other, and no part can be changed unless all or most other parts are also changed. A system is better than chaos. If a society system disintegrates or is destroyed by blows from the outside the society ends in chaos, and a completely new society is built upon its ruins, often using the elements of the destroyed system to build the new. That has happened many times in history. But, what also happens is that the society is not simply destroyed but that the system is changed, and a new system emerges which can be considered to be a transformation of the old one.

Thomas Aquinas Fotografia
Fritjof Capra Fotografia
Herbert A. Simon Fotografia
Jean Genet Fotografia

„Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Etiam egestas wisi a erat. Morbi imperdiet, mauris ac auctor dictum.“