In science, the best precept is to alter and exchange our ideas as fast as science moves ahead.
CLAUDE BERNARDAll the vital mechanisms, varied as they are, have only one object, that of preserving constant the conditions of life in the internal environment.
More Claude Bernard Quotes
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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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Experiment is fundamentally only induced observation.
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Man can learn nothing unless he proceeds from the known to the unknown.
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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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We must alter theory to adapt it to nature, but not nature to adapt it to theory.
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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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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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It is what we know already that often prevents us from learning.
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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 minds that rise and become really great are never self-satisfied, but still continue to strive.
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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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The experimenter who does not know what he is looking for will not understand what he finds.
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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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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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The true worth of an experimenter consists in his pursuing not only what he seeks in his experiment, but also what he did not seek.
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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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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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When we meet a fact which contradicts a prevailing theory, we must accept the fact and abandon the theory, even when the theory is supported by great names and generally accepted.
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Feeling alone guides the mind.
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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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We achieve more than we know. We know more than we understand. We understand more than we can explain.
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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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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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The goal of scientific physicians in their own science … is to reduce the indeterminate. Statistics therefore apply only to cases in which the cause of the facts observed is still indeterminate.
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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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Science increases our power in proportion as it lowers our pride.
CLAUDE BERNARD