Frasi di Antoine-Laurent de Lavoisier (9 frasi)

Antoine-Laurent de Lavoisier: 9 frasi 4 Mi piace

Antoine-Laurent de Lavoisier Frasi e Citazioni

“Nulla si crea, nulla si distrugge, tutto si trasforma.”

Antoine-Laurent de Lavoisier

citato in Histoire e Dictionnaire de la Révolution Française, Éditions Robert Laffont, Paris, 1998

“Mi sono dato come legge di procedere sempre dal noto all'ignoto, e di non fare alcuna deduzione che non sgorghi direttamente dagli esperimenti e dall'osservazione.”

Antoine-Laurent de Lavoisier

citato in G. Valitutti, Le idee della chimica

Antoine-Laurent de Lavoisier: Frasi in inglese

“We must trust to nothing but facts”

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Antoine Lavoisier

Origine: Elements of Chemistry (1790), pp. xviii
Contesto: We must trust to nothing but facts: These are presented to us by Nature, and cannot deceive. We ought, in every instance, to submit our reasoning to the test of experiment, and never to search for truth but by the natural road of experiment and observation.

“When I began the following Work, my only object was to extend and explain more fully the Memoir which I read at the public meeting of the Academy of Sciences in the month of April 1787, on the necessity of reforming and completing the Nomenclature of Chemistry. While engaged in this employment, I perceived, better than I had ever done before, the justice of the following maxims of the Abbé de Condillac, in his System of Logic, and some other of his works. "We think only through the medium of words.—Languages are true analytical methods.—Algebra, which is adapted to its purpose in every species of expression, in the most simple, most exact, and best manner possible, is at the same time a language and an analytical method.—The art of reasoning is nothing more than a language well arranged."”

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Antoine Lavoisier

Origine: Elements of Chemistry (1790), p.xiii

“We may lay it down as an incontestible axiom, that, in all the operations of art and nature, nothing is created; an equal quantity of matter exists both before and after the experiment; the quality and quantity of the elements remain precisely the same; and nothing takes place beyond changes and modifications in the combination of these elements. Upon this principle the whole art of performing chemical experiments depends: We must always suppose an exact equality between the elements of the body examined and those of the products of its analysis.”

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Antoine Lavoisier

Origine: Elements of Chemistry (1790), p. 226

“Thus, while I thought myself employed only in forming a Nomenclature, and while I proposed to myself nothing more than to improve the chemical language, my work transformed itself by degrees, without my being able to prevent it, into a treatise upon the Elements of Chemistry.”

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Antoine Lavoisier

Origine: Elements of Chemistry (1790), p.xiv

“The art of concluding from experience and observation consists in evaluating probabilities, in estimating if they are high or numerous enough to constitute proof. This type of calculation is more complicated and more difficult than one might think. It demands a great sagacity generally above the power of common people. The success of charlatans, sorcerors, and alchemists—and all those who abuse public credulity—is founded on errors in this type of calculation.”

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Antoine Lavoisier

Antoine Lavoisier and Benjamin Franklin, Rapport des commissaires chargés par le roi de l'examen du magnétisme animal (Imprimerie royale, 1784), trans. Stephen Jay Gould, "The Chain of Reason versus the Chain of Thumbs", Bully for Brontosaurus (W.W. Norton, 1991), p. 195