The experimenter who does not know what he is looking for will not understand what he finds.
CLAUDE BERNARDIn science, the best precept is to alter and exchange our ideas as fast as science moves ahead.
More Claude Bernard Quotes
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True science teaches us to doubt and, in ignorance, to refrain.
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The investigator should have a robust faith – and yet not believe.
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Science does not permit exceptions.
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The great experimental principle, then, is doubt, that philosophic doubt which leaves to the mind its freedom and initiative, and from which the virtues most valuable to investigators in physiology and medicine are derived.
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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.
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In science, the best precept is to alter and exchange our ideas as fast as science moves ahead.
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When entering on new ground we must not be afraid to express even risky ideas so as to stimulate research in all directions. As Priestley put it, we must not remain inactive through false modesty based on fear of being mistaken.
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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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It is what we know already that often prevents us from learning.
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The minds that rise and become really great are never self-satisfied, but still continue to strive.
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Man can learn nothing unless he proceeds from the known to the unknown.
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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.
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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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Those who do not know the torment of the unknown cannot have the joy of discovery.
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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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We must never make experiments to confirm our ideas, but simply to control them.
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Those who have an excessive faith in their theories or in their ideas are not only poorly disposed to make discoveries, but they also make very poor observations.
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But while I accept specialization in the practice, I reject it utterly in the theory of science.
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We must never make experiments to confirm our ideas, but simply to control them.
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A man of science rises ever, in seeking truth; and if he never finds it in its wholeness, he discovers nevertheless very significant fragments; and these fragments of universal truth are precisely what constitutes science.
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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 joy of discovery is certainly the liveliest that the mind of man can ever feel.
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Science increases our power in proportion as it lowers our pride.
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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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Priestley said that each discovery we make shows us many others that should be made.
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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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