Louis Pasteur Short Quotes

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The characteristic of a true theory is its fruitfulness.

Louis Pasteur
I could never work for money, but I would always work for science.

Louis Pasteur
In the fields of observation chance favors only the prepared mind.

Louis Pasteur
Where observation is concerned, chance favors only the prepared mind.
On the inauguration of the Faculty of Science, University of Lille

Louis Pasteur
A bottle of wine contains more philosophy than all the books in the world.

Louis Pasteur
I am on the edge of mysteries and the veil is getting thinner and thinner.

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

Louis Pasteur
Wine may well be considered the most healthful and most hygienic of beverages.

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

Louis Pasteur
Let me tell you the secret that has led me to my goal. My strength lies solely in my tenacity.

Louis Pasteur
Science should not concern itself in any way with the philosophical consequences of its discoveries.

Louis Pasteur
Never will the doctrine of spontaneous generation recover from the mortal blow struck by this simple experiment.

Louis Pasteur
Without theory, practice is but routine born of habit. Theory alone can bring forth and develop the spirit of invention.

Louis Pasteur
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
The arguments... by which you support my theories, are most ingenious, but not founded on demonstrated facts; analogy is no proof.

Louis Pasteur
Science proceeds by successive answers to questions more and more subtle, coming nearer and nearer to the very essence of phenomena.

Louis Pasteur
A man of science should think of what will be said of him in the following century, not of the insults or the compliments of one day.

Louis Pasteur
All things are hidden, obscure and debatable if the cause of the phenomena be unknown, but everything is clear if this cause be known.

Louis Pasteur
Where are the real sources of human dignity, freedom and modern democracy, if not in the concept of infinity to which all men are equal?

Louis Pasteur
One does not ask of one who suffers: What is your country and what is your religion? One merely says: You suffer, that is enough for me...

Louis Pasteur
To bring one's self to believe in a truth that has just dawned upon one is the first step towards progress; to persuade others is the second.

Louis Pasteur
Hypotheses come into our laboratories in armfuls, they fill our registers with projected experiments, they stimulate us to research - and that is all.

Louis Pasteur
If I have sometimes disturbed the peace of our Academic meetings by somewhat too lively discussions, it is because I have passionately defended the truth.

Louis Pasteur
Time is the best appraiser of scientific work, and I am aware that an industrial discovery rarely produces all its fruit in the hands of its first inventor.

Louis Pasteur
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
He who proclaims the existence of the infinite - and no one can escape from it - accumulates in this affirmation more of the supernatural than exists in all the miracles of all religions.

Louis Pasteur
When I am in my laboratory...! begin by shutting the door on materialism and on spiritualism; I observe facts alone; I seek but the scientific conditions under which life manifests itself.

Louis Pasteur
When moving forward toward the discovery of the unknown, the scientist is like a traveler who reaches higher and higher summits from which he sees in the distance new countries to explore.

Louis Pasteur
If perchance you should falter during the journey, a hand would be there to support you. If that should be wanting, God, who alone could take that hand from you, would Himself accomplish its work.

Louis Pasteur
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