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.
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.
Interpretation
What this quote means
The quote reflects on the asymmetry of the universe and its influence on life, suggesting that our existence is shaped by the inherent irregularities in the cosmos.
In this quote, Louis Pasteur emphasizes the uniqueness and asymmetrical nature of the universe, positing that the intricacies of life are a direct result of this asymmetry. The imagery of the solar system illustrates how each celestial body moves in a distinct manner, creating a reality that cannot be perfectly mirrored or replicated, thus making life profoundly complex and diverse. Pasteur suggests that understanding this asymmetry is crucial to comprehending the essence of existence.
Themes
In practice
Example use cases
Introducing the concept of asymmetry in a physics lecture.
More from Louis Pasteur
All quotes →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.
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Now would I give a thousand furlongs of sea for an acre of barren ground.
Strange as my circumstances were, the terms of this debate are as old and commonplace as man; much the same inducements and alarms cast the die for any tempted and trembling sinner; and it fell out with me, as it falls with so vast a majority of my fellows, that I chose the better part and was found wanting in the strength to keep to it.
You think that just because it's already happened, the past is finished and unchangeable? Oh no, the past is cloaked in multicolored taffeta and every time we look at it we see a different hue.
The soul's dark cottage, batter'd and decay'd, Lets in new light through chinks that Time has made. Stronger by weakness, wiser men become As they draw near to their eternal home: Leaving the old, both worlds at once they view That stand upon the threshold of the new.
A person is neither a thing nor a process but an opening through which the Absolute can manifest.