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Antoine Lavoisier Biography

Antoine Lavoisier

Antoine-Laurent de Lavoisier (also Antoine Lavoisier after the French Revolution; French: [ɑ̃twan lɔʁɑ̃ də lavwazje]; 26 August 1743 – 8 May 1794) was a French nobleman and chemist who was central to the 18th-century chemical revolution and who had a large influence on both the history of chemistry and the history of biology. He is widely considered in popular literature as the "father of modern chemistry".

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Antoine Lavoisier Quotes

The whole art of making experiments in chemistry is founded on the principle: we must always suppose an exact equality or equation between the principles of the body examined and those of the products of its analysis.

Art, Equality, Equation, Examined, Experiments, Principles

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.

Art, Experiments, Lay, Quality, Science, Suppose

The art of drawing conclusions from experiments and observations consists in evaluating probabilities and in estimating whether they are sufficiently great or numerous enough to constitute proofs. This kind of calculation is more complicated and more difficult than it is commonly thought to be. . . .

Art, Drawing, Estimating, Consists, Enough

It is not only by the pores of the skin that this aqueous emaciation takes place. A considerable quantity of humidity is also exhaled by the lungs at each expiration.

Skins, Humidity, Quantity, Pores, Expiration, Exhaled

Nothing is born, nothing dies.

Born, Dies, Nothing

This theory [the oxygen theory] is not as I have heard it described, that of the French chemists, it is mine (elle est la mienne); it is a property which I claim from my contemporaries and from posterity.

Biographies, Claim, Described, Mienne, Oxygen, Science

One succeeds in obtaining an equivalent production at a lower price by improving the arts, trades and agriculture and by developing the physical and moral qualities of workers, farmers and craftsmen.

Agriculture, Art, Equivalent, Moral, Quality

It is almost possible to predict one or two days in advance, within a rather broad range of probability, what the weather is going to be; it is even thought that it will not be impossible to publish daily forecasts, which would be very useful to soci.

Daily, Forecasts, Two, Useful, Weather, Would Be

As ideas are preserved and communicated by means of words, it necessarily follows that we cannot improve the language of any science, without at the same time improving the science itself; neither can we, on the other hand, improve a science without improving the language or nomenclature which belongs to it.

Communicated, Hands, Mean, Preserved, Science, Words

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.

Art, Exact, Learning, Manner, Thinking, True

It required 85 parts by weight of oxygen and 15 parts of hydrogen to compose 100 parts of water.

Compose, Oxygen, Parts, Water, Weight

In performing experiments, it is necessary. . . that they be simplified as much as possible, and that every circumstance that could complicate the results should be completely removed.

Circumstances, Completely, Necessary, Results, Should

I have had a fairly long life, above all a very happy one, and I think that I shall be remembered with some regrets and perhaps leave some reputation behind me. What more could I ask? The events in which I am involved will probably save me from the troubles of old age. I shall die in full possession of my faculties, and that is another advantage that I should count among those that I have enjoyed. If I have any distressing thoughts, it is of not having done more for my family; to be unable to give either to them or to you any token of my affection and my gratitude is to be poor indeed.

Enjoyed, Events, Gratitude, Life, Long, Regret

Sulfur, when burning, absorbs oxygen gas; the resulting acid is considerably heavier than the sulfur burned; its weight is equal to the sum of weights of the sulfur burned and the oxygen absorbed.

Burning, Gas, Oxygen, Resulting, Sulfur, Weight

Perhaps. . . some day the precision of the data will be brought so far that the mathematician will be able to calculate at his desk the outcome of any chemical combination, in the same way, so to speak, as he calculates the motions of celestial bodies.

Bodies, Body, Data, Day, Same, Science

Nothing is lost, nothing is created, everything is transformed

Change, Creating, Transformation, Created, Transformed, Everything

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.

Degrees, Elements, Employed, Nomenclature, Thought

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.

Deception, Experiment, Nature, Presented, Science, Search

Since it is the very substance of the animal, it is the blood which transports the fuel. If the animal did not habitually replace, through nourishing themselves,what they losethrough respiration, the lamp would very soon run out of oil and the animal would perish, just as the lamp goes out when it lacks fuel.

Running, Animal, Blood, Lamp, Run, Habitually

It is impossible to disassociate language from science. . . To call forth a concept, a word is needed.

Forth, Impossible, Language, Needed

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