Louis Pasteur Quotes About Science

• La ciencia no conoce país, porque el conocimiento pertenece a la humanidad y es la antorcha que ilumina el mundo.

  Louis Pasteur

  Country, Science, Technology

  1876 Toast at the banquet of the International Congress of Sericulture (translated by Rene Dubois).

• El azar favorece a la mente preparada.

  Louis Pasteur

  Inspirational, Softball, Sports

  Lecture, University of Lille, December 7б 1854.

• La ciencia no conoce país, porque el conocimiento pertenece a la humanidad y es la antorcha que ilumina el mundo. La ciencia es la más alta personificación de la nación, porque esa nación seguirá siendo la primera que lleve más lejos las obras del pensamiento y de la inteligencia.

  Louis Pasteur

  Country, Hard Work, Knowledge

  1876 Toast at the banquet of the International Congress of Sericulture (translated by Rene Dubois).

• There are no such things as applied sciences, only applications of science.

  Louis Pasteur

  Science, Past, Technology

  Address, 11 September 1872, in 'Comptes rendus des travaux du Congrés viticole et sèricicole de Lyon, 9-14 septembre 1872' p. 49

• Science belongs to no one country.

  Louis Pasteur

  Inspirational, Country, Science

• There does not exist a category of science to which one can give the name applied science. There are sciences and the applications of science, bound together as the fruit of the tree which bears it.

  Louis Pasteur

  Science, Past, Names

  "Revue Scientifique". Book by Louis Pasteur, 1871.

• These microscopic organisms form an entire world composed of species, families and varieties whose history, which has barely begun to be written, is already fertile in prospects and findings of the highest importance. The names of these organisms are very numerous and will have to be defined and in part discarded. The word microbe which has the advantage of being shorter and carrying a more general meaning, and of having been approved by my illustrious friend, M. Littré, the most competent linguist in France, is one we will adopt.

  Louis Pasteur

  Science, Names, Nomenclature

• The artificial products do not have any molecular dissymmetry; and I could not indicate the existence of a more profound separation between the products born under the influence of life and all the others.

  Louis Pasteur

  Life, Science, Profound

• The universe is an asymmetrical entity. I am inclined to believe that life as it is manifested to us must be a function of the asymmetry of the universe or of the consequence of this fact. The universe is asymmetrical; for if one placed the entire set of bodies that compose the solar system, each moving in its own way, before a mirror, the image shown would not be superimposable on the reality.

  Louis Pasteur

  Life, Believe, Moving

• The universe is asymmetric and I am persuaded that life, as it is known to us, is a direct result of the asymmetry of the universe or of its indirect consequences. The universe is asymmetric.

  Louis Pasteur

  Life, Science, Mirrors

  "Works". "Comptes Rendus de l'Académie des Sciences", Vol. 1, June 1, 1874.

• As in the experimental sciences, truth cannot be distinguished from error as long as firm principles have not been established through the rigorous observation of facts.

  Louis Pasteur

  Science, Errors, Long

• You bring me the deepest joy that can be felt by a man whose invincible belief is that Science and Peace will triumph over Ignorance and War, that nations will unite, not to destroy, but to build, and that the future will belong to those who will have done most for suffering humanity.

  Louis Pasteur

  Guerra, Ignorancia, Ciencia

  Speech at celebration honoring his seventieth birthday, the Sorbonne, Paris, France (December 27, 1892); "The life of Pasteur" by René Vallery-Radot, translated by Mrs. R. L. Devonshire, Vol. 2, (p. 297), 1902.

• My present and most fixed opinion regarding the nature of alcoholic fermentation is this: The chemical act of fermentation is essentially a phenomenon correlative with a vital act, beginning and ending with the latter. I believe that there is never any alcoholic fermentation without their being simultaneously the organization, development, multiplication of the globules, or the pursued, continued life of globules which are already formed.

  Louis Pasteur

  Creer, Ciencia, Organización

• Vivir en la serena paz de laboratorios y bibliotecas

  Louis Pasteur

  Science, Library, Serene

  "The Life of Pasteur". Book by René Vallery-Radot, translated by R .L. Devonshire. Volume 2, p. 228, archive.org. 1902.

• If science has no country, the scientist should have one, and ascribe to it the influence which his works may have in this world.

  Louis Pasteur

  Country, Hard Work, Science

• We affirm the neutrality of Science ... Science is of no country. ... But if Science has no country, the scientist must keep in mind all that may work towards the glory of his country. In every great scientist will be found a great patriot.

  Louis Pasteur

  Country, Hard Work, Science

• Every chemical substance, whether natural or artificial, falls into one of two major categories, according to the spatial characteristic of its form. The distinction is between those substances that have a plane of symmetry and those that do not. The former belong to the mineral, the latter to the living world.

  Louis Pasteur

  Life, Nature, Fall

  "Oeuvres de Pasteur". Book edited by Louis Pasteur Vallery-Radot, Vol. I, 331, 1922-1939.

• Without theory, practice is but routine born of habit. Theory alone can bring forth and develop the spirit of invention. ... [Do not] share the opinion of those narrow minds who disdain everything in science which has not an immediate application. ... A theoretical discovery has but the merit of its existence: it awakens hope, and that is all. But let it be cultivated, let it grow, and you will see what it will become.

  Louis Pasteur

  Science, Discovery, Practice

• Herrmann Pidoux and Armand Trousseau stated 'Disease exists within us, because of us, and through us', Pasteur did not entirely disagree, 'This is true for certain diseases', he wrote cautiously, only to add immediately: 'I do not think that it is true for all of them'.

  Louis Pasteur

  Truth, Science, Thinking

• I give them experiments and they respond with speeches.

  Louis Pasteur

  Science, Giving, Speech

• To demonstrate experimentally that a microscopic organism actually is the cause of a disease and the agent of contagion, I know no other way, in the present state of Science, than to subject the microbe (the new and happy term introduced by M. Sédillot) to the method of cultivation out of the body.

  Louis Pasteur

  Knowledge, Science, Agents

  Hippocrates, Ambroise Paré, William Harvey, Edward Jenner, Oliver Wendell Holmes (1910). “Scientific Papers; Physiology, Medicine, Surgery, Geology”

• En aquel memorable año de 1822 Oersted, físico danés, tenía en sus manos un trozo de alambre de cobre, unido por sus extremos a los dos polos de una pila de Volta. Sobre su mesa había una aguja magnetizada sobre su pivote, y de pronto vio (por casualidad diréis, pero la casualidad sólo favorece a la mente que está preparada) que la aguja se movía y adoptaba una posición muy distinta de la que le asignaba el magnetismo terrestre. Un hilo portador de corriente eléctrica desvía de su posición una aguja magnetizada. Ese, señores, fue el nacimiento del telégrafo moderno.

  Louis Pasteur

  Moving, Memorable, Science

• If it is a terrifying thought that life is at the mercy of the multiplication of these minute bodies [microbes], it is a consoling hope that Science will not always remain powerless before such enemies.

  Louis Pasteur

  Science, Enemy, Body

• Nothing is lost and nothing is created in the operations of art as those of nature.

  Louis Pasteur

  Arte, Naturaleza, Ciencia

• There is no such thing as a special category of science called applied science; there is science and its applications, which are related to one another as the fruit is related to the tree that has borne it.

  Louis Pasteur

  Science, Tree, Special

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