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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
Laboratory
Enter
Leave
Imagination
Science
Overcoat

More quotes by Claude Bernard

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Progress is achieved by exchanging our theories for new ones which go further than the old, until we find one based on a larger number of facts. ... Theories are only hypotheses, verified by more or less numerous facts. Those verified by the most facts are the best, but even then they are never final, never to be absolutely believed.
Claude Bernard
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We achieve more than we know. We know more than we understand. We understand more than we can explain.
Claude Bernard
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The experimenter who does not know what he is looking for will not understand what he finds.
Claude Bernard
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We must alter theory to adapt it to nature, but not nature to adapt it to theory.
Claude Bernard
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Priestley [said] that each discovery we make shows us many others that should be made.
Claude Bernard
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Those who do not know the torment of the unknown cannot have the joy of discovery.
Claude Bernard
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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.
Claude Bernard
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If I had to define life in a single phrase, I should clearly express my thought of throwing into relief one characteristic which, in my opinion, sharply differentiates biological science. I should say: life is creation.
Claude Bernard
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Science increases our power in proportion as it lowers our pride.
Claude Bernard
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True science teaches us to doubt and, in ignorance, to refrain.
Claude Bernard
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Science admits no exceptions otherwise there would be no determinism in science, or rather, there would be no science.
Claude Bernard
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Mediocre men often have the most acquired knowledge. It is in the darker. It is in the darker regions of science that great men are recognized they are marked by ideas which light up phenomena hitherto obscure and carry science forward.
Claude Bernard
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The mental never influences the physical. It is always the physical that modifies the mental, and when we think that the mind is diseased, it is always an illusion.
Claude Bernard
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Our ideas are only intellectual instruments which we use to break into phenomena we must change them when they have served their purpose, as we change a blunt lancet that we have used long enough.
Claude Bernard
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Obervation is a passive science, experimentation is an active science.
Claude Bernard
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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.
Claude Bernard
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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.
Claude Bernard
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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.
Claude Bernard
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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.
Claude Bernard
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A discovery is generally an unforeseen relation not included in theory.
Claude Bernard