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In the philosophic sense, observation shows and experiment teaches.

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
Experiments
Teach
Science
Sense
Shows
Philosophic
Experiment
Teaches
Observation

More quotes by 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.
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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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We must alter theory to adapt it to nature, but not nature to adapt it to theory.
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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.
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The experimenter who does not know what he is looking for will not understand what he finds.
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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.
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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.
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Priestley [said] that each discovery we make shows us many others that should be made.
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Effects vary with the conditions which bring them to pass, but laws do not vary. Physiological and pathological states are ruled by the same forces they differ only because of the special conditions under which the vital laws manifest themselves.
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Mediocre men often have the most acquired knowledge
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Well-observed facts, though brought to light by passing theories, will never die they are the material on which alone the house of science will at last be built.
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Hatred is the most clear- sighted, next to genius.
Claude Bernard
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Science rejects the indeterminate.
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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Obervation is a passive science, experimentation is an active science.
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Proof that a given condition always precedes or accompanies a phenomenon does not warrant concluding with certainty that a given condition is the immediate cause of that phenomenon. It must still be established that when this condition is removed, the phenomen will no longer appear.
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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The terrain is everything the germ is nothing.
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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. '
Claude Bernard
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First causes are outside the realm of science.
Claude Bernard