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First causes are outside the realm of science.

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
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Science
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More quotes by Claude Bernard

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Science does not permit exceptions.
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.
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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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In these researches I followed the principles of the experimental method that we have established, i.e., that, in presence of a well-noted, new fact which contradicts a theory, instead of keeping the theory and abandoning the fact, I should keep and study the fact, and I hastened to give up the theory.
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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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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.
Claude Bernard
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A discovery is generally an unforeseen relation not included in theory.
Claude Bernard
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The terrain is everything the germ is nothing.
Claude Bernard
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Obervation is a passive science, experimentation is an active science.
Claude Bernard
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True science teaches us to doubt and, in ignorance, to refrain.
Claude Bernard
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It is what we know already that often prevents us from learning.
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The joy of discovery is certainly the liveliest that the mind of man can ever feel.
Claude Bernard
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The stability of the internal medium is a primary condition for the freedom and independence of certain living bodies in relation to the environment surrounding them.
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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All the vital mechanisms, varied as they are, have only one object, that of preserving constant the conditions of life in the internal environment.
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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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.
Claude Bernard
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In the philosophic sense, observation shows and experiment teaches.
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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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.
Claude Bernard