Louis Pasteur

Louis Pasteur
Louis Pasteurwas a French chemist and microbiologist renowned for his discoveries of the principles of vaccination, microbial fermentation and pasteurization. He is remembered for his remarkable breakthroughs in the causes and preventions of diseases, and his discoveries have saved countless lives ever since. He reduced mortality from puerperal fever, and created the first vaccines for rabies and anthrax. His medical discoveries provided direct support for the germ theory of disease and its application in clinical medicine. He is best known...
NationalityFrench
ProfessionScientist
Date of Birth27 December 1822
CityDole, France
CountryFrance
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.
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.
One must work; one must work. I have done what I could.
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.
In the fields of observation chance favors only the prepared mind.
Never will the doctrine of spontaneous generation recover from the mortal blow struck by this simple experiment.
Worship the spirit of criticism.
Science proceeds by successive answers to questions more and more subtle, coming nearer and nearer to the very essence of phenomena.
Outsidetheir laboratories, thephysicianand chemist are soldiers without arms on the field of battle.
No, there is now no circumstance known in which it can be affirmed that microscopic beings came into the world without germs, without parents similar to themselves. Those who affirm it have been duped by illusions, by ill-conducted experiments, spoilt by errors that they either did not perceive or did not know how to avoid.
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?
It would seem to me that I was committing a theft if I were to let one day go by without doing some work.
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.
Intuition is given only to him who has undergone long preparation to receive it.