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.
Interpretation
In science, practical experimentation is crucial to prove that microbes cause diseases.
Louis Pasteur emphasizes the importance of experimental evidence in establishing the role of microorganisms in diseases. He advocates for the cultivation of microbes outside their natural environment to conclusively demonstrate their connection to infectious diseases, highlighting the scientific method's vital role in understanding health and disease.
In practice
This quote can be used to encourage scientific research in medical fields at a conference.
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.
These are the living springs of great thoughts and great actions. Everything grows clear in the reflections from the Infinite.
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.
These three things-work, will, success-fill human existences. Will opens the door to success, both brilliant and happy. Work passes these doors, and at the end of the journey success comes in to crown one's efforts.
Chance favors those who are prepared.
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.
Scientists have become the bearers of the torch of discovery in our quest for knowledge.
The primitive fight-or-flight regions of our mammalian brains react to immediate danger. We instinctively run from an avalanche but the gradual retreat of a glacier, the portent of the far greater danger of rising temperatures and rising oceans, just doesn't get through to us in the same way.
If something is in me which can be called religious then it is the unbounded admiration for the structure of the world so far as our science can reveal it.
Many people have the impression that there is significant scientific disagreement about global climate change. It's time to lay that misapprehension to rest. There is a scientific consensus on the fact that Earth's climate is heating up and human activities are part of the reason. We need to stop repeating nonsense about the uncertainty of global warming and start talking seriously about the right approach to address it.
In the history of science it has often happened that the majority was wrong and refused to listen to a minority that later turned out to be right.
Mathematical science is in my opinion an indivisible whole, an organism whose vitality is conditioned upon the connection of its parts.
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