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Claude Bernard Quotes

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Claude Bernard
July 12, 1813 - February 10, 1878
Nationality: French
Category: Psychologist
Subcategory: French Psychologist

Experimentation is an active science.


The experimenter who does not know what he is looking for will not understand what he finds.


The true worth of an experimenter consists in his pursuing not only what he seeks in his experiment, but also what he did not seek.


A fact in itself is nothing. It is valuable only for the idea attached to it, or for the proof which it furnishes.


Mediocre men often have the most acquired knowledge.


In teaching man, experimental science results in lessening his pride more and more by proving to him every day that primary causes, like the objective reality of things, will be hidden from him forever and that he can only know relations.


Put off your imagination, as you put off your overcoat, when you enter the laboratory. Put it on again, as you put on your overcoat, when you leave.


Art is I; science is we.


Man can learn nothing except by going from the known to the unknown.


The investigator should have a robust faith - and yet not believe.


Observation is a passive science, experimentation an active science.


Science does not permit exceptions.


It is what we know already that often prevents us from learning.


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