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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.

Claude Bernard

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Claude Bernard
Age: 64 †
Born: 1813
Born: July 12
Died: 1878
Died: February 10
Physician Writer
Physiologist
Politician
Professor
Psychologist
Overcoat
Laboratory
Enter
Leave
Imagination
Science

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Those who do not know the torment of the unknown cannot have the joy of discovery.
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The joy of discovery is certainly the liveliest that the mind of man can ever feel.
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Science admits no exceptions otherwise there would be no determinism in science, or rather, there would be no science.
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The fact that knowledge endlessly recedes as the investigator is about to grasp it is what constitutes at the same time his torment and happiness.
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The better educated we are and the more acquired information we have, the better prepared shall we find our minds for making great and fruitful discoveries.
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Now, a living organism is nothing but a wonderful machine endowed with the most marvellous properties and set going by means of the most complex and delicate mechanism.
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A contemporary poet has characterized this sense of the personality of art and of the impersonality of science in these words,-'Art is myself science is ourselves. '
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Il ne fallait jamais faire des expériences pour confirmer ses idées, mais simplement pour les contrôler. We must never make experiments to confirm our ideas, but simply to control them.
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Mediocre men often have the most acquired knowledge
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First causes are outside the realm of science.
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The science of life is a superb and dazzlingly lighted hall which may be reached only by passing through a long and ghastly kitchen.
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The eloquence of a scientist is clarity scientific truth is always more luminous when its beauty is unadorned than when it is tricked out in the embellishments with which our imagination would seek to clothe it.
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A great discovery is a fact whose appearance in science gives rise to shining ideas, whose light dispels many obscurities and shows us new paths.
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True science teaches us to doubt and, in ignorance, to refrain.
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All the vital mechanisms, varied as they are, have only one object, that of preserving constant the conditions of life in the internal environment.
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Theories are like a stairway by climbing, science widens its horizon more and more, because theories embody and necessarily include proportionately more facts as they advance.
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It is what we know already that often prevents us from learning.
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Men who believe too firmly in their theories, do not believe enough in the theories of others. So ... these despisers of their fellows ... make experiments only to destroy a theory, instead of to seek the truth.
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Obervation is a passive science, experimentation is an active science.
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The doubter is a true man of science: he doubts only himself and his interpretations, but he believes in science.
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