Louis Pasteur Quotes

83 quotes in 1022 categories

• 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…
• Luck favors the mind that is prepared.
• In matters of observation chance favors only the prepared mind. (not literal translation) - Dan's les champs de observation le hasard ne favorise que les…
• Worship the spirit of criticism. If reduced to itself it is not an awakener of ideas or a stimulant to great things, but, without it,…
• Change only favours minds that are diligently looking and preparing for discovery.
• 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…
• 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…
• 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…
• 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…
• Did you ever observe to whom the accidents happen? Chance favors only the prepared mind.
• 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…
• 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…
• 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…
• 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…
• After death, life reappears in a different form and with different laws. It is inscribed in the laws of the permanence of life on the…
• 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…
• Without theory, practice is but routine born of habit. Theory alone can bring forth and develop the spirit of invention. ... [Do not] share the…
• 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…
• I give them experiments and they respond with speeches.
• In that memorable year, 1822: Oersted, a Danish physicist, held in his hands a piece of copper wire, joined by its extremities to the two…

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