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A collection of popular quotes and sayings by Louis Pasteur on success, family, inventions, thoughts, strength, humanity, knowledge, science, and scepticism.

122 Top Louis Pasteur Quotes

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Chemist and Microbiologist

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Dole, Jura, Franche-Comté, France

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Louis Pasteur was a prominent French chemist, biologist, and microbiologist well-known for his discoveries of the principles of microbial fermentation, vaccination, and pasteurization. Pasteur is renowned for his discoveries in the causes and prevention of diseases and his breakthroughs have saved many lives. He is accredited for reducing mortality caused from childbed fever and was the first one to create vaccines for anthrax and rabies. His medical discoveries helped the germ theory of disease. We have curated some enlightening quotes and sayings by Louis Pasteur on life, universe, atheism, curiosity, mind, goals, technology, mind, philosophy etc that are sure to motivate you.

Chance favors those who are prepared.

- Louis Pasteur

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 esprits prepares.

- Louis Pasteur

There is no such thing as applied science, only the application of pure science.

- Louis Pasteur

The only thing that can bring joy is work.

- Louis Pasteur

One must not assume that an understanding of science is present in those who borrow the language

- Louis Pasteur

In the realm of scientific observation, luck is granted only to those who are prepared.

- Louis Pasteur

I give them experiments and they respond with speeches.

- Louis Pasteur

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

- Louis Pasteur

Chance favours a prepared mind.

- Louis Pasteur

These are the living springs of great thoughts and great actions. Everything grows clear in the reflections from the Infinite.

- Louis Pasteur

If you suppress laboratories, physical science will be stricken with barrenness and death.

- Louis Pasteur

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

- Louis Pasteur

Worship the spirit of criticism.

- Louis Pasteur

It would seem to me that I was committing a theft if I were to let one day go by without doing some work.

- Louis Pasteur

In good philosophy, the word cause ought to be reserved to the single Divine impulse that has formed the universe.

- Louis Pasteur

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

- Louis Pasteur

In the fields of observation chance favors only those minds which are prepared.

- 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

Science advances through tentative answers to a series of more and more subtle questions which reach deeper and deeper into the essence of natural phenomena.

- 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

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

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

The nights seem to me too long... I am often scolded by Madame Pasteur, but I tell her I shall lead her to fame.

- 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

Since the most ancient times, all men, and particularly those who endeavored in the practice of medicine, have brought closer together two natural phenomena of capital importance: illness or fever and fermentation.

- Louis Pasteur

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, everything is fallible; it always has the last word.

- Louis Pasteur

Work usually follows will.

- Louis Pasteur

Science knows no country because it is the light that iluminates the world

- Louis Pasteur

I have the faith of a Breton peasant and by the time I die I hope to have the faith of a Breton peasant's wife.

- Louis Pasteur

Analogy cannot serve as proof.

- Louis Pasteur

The grandeur of the acts of men are measured by the inspiration from which they spring.

- Louis Pasteur

Science belongs to no one country.

- Louis Pasteur

The grandeur of the acts of men are measured by the inspiration from which they spring. Happy is he who bears a God within.

- Louis Pasteur

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

- Louis Pasteur

You have not succeeded in your experiments, that is all there is to it.

- Louis Pasteur

Wine is the healthiest and most health-giving of drinks.

- Louis Pasteur

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

Do not promote what you can't explain, simplify, and prove early.

- Louis Pasteur

Did you ever observe to whom the accidents happen? Chance favors only the prepared mind.

- Louis Pasteur

The Greeks understood the mysterious power of the below things. They are the ones who gave us one of the most beautiful words in our language, the word enthusiasm.

- Louis Pasteur

The more I know, the more nearly is my faith that of the Breton peasant. Could I but know all I would have the faith of a Breton peasant woman.

- Louis Pasteur

Fortune favors the well-prepared.

- Louis Pasteur

When one works and imagines and dreams of nothing else than the search for answers that God has posed, it is difficult to be so still.

- Louis Pasteur

... by chance you will say, but chance only favors the mind which is prepared.

- Louis Pasteur

There is a time in every man's life when he looks to his God, when he looks at his life, when he wonders how he will be remembered.

- Louis Pasteur

Outsidetheir laboratories, thephysicianand chemist are soldiers without arms on the field of battle.

- 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

The greatest disorder of the mind is to let will direct it.

- 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

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 universe is asymmetric.

- Louis Pasteur

Bernard was right. The germ is nothing, the terrain is everything.

- Louis Pasteur

Posterity will one day laugh at the foolishness of modern materialistic philosophers.

- Louis Pasteur

The flavor of wine is like delicate poetry.

- Louis Pasteur

What did you do today to receive your instruction?

- Louis Pasteur

God grant that by my persevering labours I may bring a little stone to the frail and ill-assured edifice of our knowledge of those deep mysteries of Life and Death where all our intellects have so lamentably failed.

- Louis Pasteur

Chance favours the trained mind.

- Louis Pasteur

Whatever your career may be, do not let yourselves become tainted by a deprecating and barren scepticism.

- Louis Pasteur

Where observation is concerned, chance favors only the prepared mind.

- Louis Pasteur

Luck favors the mind that is prepared.

- Louis Pasteur

Will opens the door to success, both brilliant and happy.

- 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

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

How do you know that the incessant progress of science will not compel scientists to consider that life has existed during eternity, and not matter?

- Louis Pasteur

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

- Louis Pasteur

It is surmounting difficulties that makes heroes.

- Louis Pasteur

Oh my goodness the mystery that has prompted my objective. My quality lies exclusively in my tirelessness.

- Louis Pasteur

The controls of life are structured as forms and nuclear arrangements, in a relation with the motions of the universe.

- Louis Pasteur

The greatest malfunction of spirit is to believe things.

- Louis Pasteur

La fortuna juega a favor de una mente preparada

- Louis Pasteur

Blessed is he who carries within himself a God, an ideal, and obeys it.

- Louis Pasteur

Whether our efforts are, or not, favored by life, let us be able to say, when we come near to the great goal, I have done what I could.

- Louis Pasteur

Wine is the most healthful and most hygienic of beverages.

- Louis Pasteur

Do not put forward anything that you cannot prove by experimentation.

- Louis Pasteur

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 brings men nearer to God.

- Louis Pasteur

Do not let yourself be tainted with a barren skepticism.

- Louis Pasteur

My strength lies solely in my tenacity.

- Louis Pasteur

Live in the serene peace of laboratories and libraries

- Louis Pasteur

Intuition is given only to him who has undergone long preparation to receive it.

- Louis Pasteur

Science and Peace will triumph over Ignorance and War...

- Louis Pasteur

Life comes only from life.

- Louis Pasteur

Change only favours minds that are diligently looking and preparing for discovery.

- Louis Pasteur

When I approach a child, he inspires in me two sentiments; tenderness for what he is, and respect for what he may become.

- Louis Pasteur

It is not the germs we need worry about. It is our inner terrain.

- Louis Pasteur

Question your priorities often, make sure God always comes first.

- Louis Pasteur

Inspiration is the impact of a fact on a well-prepared mind

- Louis Pasteur

The greatest derangement of the mind is to believe in something because one wishes it to be so.

- 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

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

- Louis Pasteur

The role of the infinitely small in nature is infinitely great.

- Louis Pasteur

Science knows no country, because knowledge belongs to humanity, and is the torch which illuminates the world.

- Louis Pasteur

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

- Louis Pasteur

To know how to wonder and question is the first step of the mind toward discovery.

- Louis Pasteur

Little science takes you away from God but more of it takes you to Him.

- Louis Pasteur

Chance favors the prepared mind.

- Louis Pasteur

The more I study nature, the more I stand amazed at the work of the Creator. Science brings men nearer to God.

- Louis Pasteur

Posterity will one day laugh at the sublime foolishness of the modern materialistic philosophy. The more I study nature, the more I stand amazed at the work of the Creator. I pray while I am engaged at my work in the laboratory.

- Louis Pasteur

Science knows no country, because knowledge belongs to humanity, and is the torch which illuminates the world. Science is the highest personification of the nation because that nation will remain the first which carries the furthest the works of thought and intelligence.

- Louis Pasteur

The Greeks bequeathed to us one of the most beautiful words in our language--the word 'enthusiasm'--en theos--a god within. The grandeur of human actions is measured by the inspiration from which they spring. Happy is he who bears a god within, and who obeys it.

- Louis Pasteur