Claude Bernard Quotes

Quotes about:

• It is what we know already that often prevents us from learning.

  Claude Bernard

  Inspirational, Educational, Learning

  68 Copy quote

• The experimenter who does not know what he is looking for will not understand what he finds.

  Claude Bernard

  Science, Doe, Knows

  Claude Bernard, Eugene Debs Robin (1979). “Claude Bernard and the internal environment: a memorial symposium”

  49 Copy quote

• The terrain is everything; the germ is nothing.

  Claude Bernard

  Germs, Terrain

  23 Copy quote

• 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.

  Claude Bernard

  Acceptance, Science, Names

  Claude Bernard “Experimental Medicine”, Transaction Publishers

  24 Copy quote

• Tout est poison, rien n'est poison, tout est une question de dose. Everything is poisonous, nothing is poisonous, it is all a matter of dose.

  Claude Bernard

  Drug, Poison, Matter

  5 Copy quote

• We achieve more than we know. We know more than we understand. We understand more than we can explain.

  Claude Bernard

  Knowledge, Science, Achievement

  5 Copy quote

• Man can learn nothing unless he proceeds from the known to the unknown.

  Claude Bernard

  Learning, Science, Men

  Bulletin of New York Academy of Medicine, Volume IV, 1928.

  23 Copy quote

• Mediocre men often have the most acquired knowledge

  Claude Bernard

  Men, Mediocrity, Mediocre

  Claude Bernard (2012). “An Introduction to the Study of Experimental Medicine”, p.70, Courier Corporation

  7 Copy quote

• Those who do not know the torment of the unknown cannot have the joy of discovery.

  Claude Bernard

  Discovery, Joy, Torment

  Claude Bernard (2012). “An Introduction to the Study of Experimental Medicine”, p.239, Courier Corporation

  19 Copy quote

• 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

  Environment, Constant, Internals

  Claude Bernard, Eugene Debs Robin (1979). “Claude Bernard and the internal environment: a memorial symposium”

  16 Copy quote

• The minds that rise and become really great are never self-satisfied, but still continue to strive.

  Claude Bernard

  Science, Self, Mind

  Claude Bernard “Experimental Medicine”, Transaction Publishers

  4 Copy quote

• Feeling alone guides the mind.

  Claude Bernard

  Passion, Feeling Alone, Feelings

  Claude Bernard (2012). “An Introduction to the Study of Experimental Medicine”, p.71, Courier Corporation

  9 Copy quote

• Men who have excessive faith in their theories or ideas are not only ill prepared for making discoveries; they also make very poor observations. Of necessity, they observe with a preconceived idea, and when they devise an experiment, they can see, in its results,only a confirmation of their theory. In this way they distort observation and often neglect very important facts because they do not further their aim.

  Claude Bernard

  Science, Men, Discovery

  Introduction to the Study of Experimental Medicine (1865) Pt I, Ch. 2, Sect. III

  21 Copy quote

• True science teaches us to doubt and, in ignorance, to refrain.

  Claude Bernard

  Ignorance, Science, Doubt

  Introduction to the Study of Experimental Medicine (1865) Pt 1, Ch. 2, Sect. VII

  14 Copy quote

• Art is 'I'; science is 'we'.

  Claude Bernard

  Witty, Art, Science

  Bulletin of New York Academy of Medicine, Volume IV, 1928.

  20 Copy quote

• A fact in itself is nothing. It is valuable only for the idea attached to it, or for the proof which it furnishes.

  Claude Bernard

  Ideas, Facts, Proof

  20 Copy quote

• Science does not permit exceptions.

  Claude Bernard

  Doe, Permit, Exception

  1855^6 Lessons of Experimental Pathology.

  8 Copy quote

• It has often been said that, to make discoveries, one must be ignorant. This opinion, mistaken in itself, nevertheless conceals a truth. It means that it is better to know nothing than to keep in mind fixed ideas based on theories whose confirmation we constantly seek, neglecting meanwhile everything that fails to agree with them.

  Claude Bernard

  Knowledge, Mean, Science

  "An Introduction to the Study of Experimental Medicine".

  5 Copy quote

• We must keep our freedom of mind, ... and must believe that in nature what is absurd, according to our theories, is not always impossible.

  Claude Bernard

  Nature, Believe, Science

  Claude Bernard (2012). “An Introduction to the Study of Experimental Medicine”, p.66, Courier Corporation

  4 Copy quote

• Descriptive anatomy is to physiology what geography is to history, and just as it is not enough to know the typography of a country to understand its history, so also it is not enough to know the anatomy of organs to understand their functions.

  Claude Bernard

  Country, Anatomy And Physiology, Typography

  Claude Bernard (1974). “Lectures on the phenomena of life common to animals and plants”, Charles C Thomas Pub Ltd

  21 Copy quote

• 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

  Science, Numbers, Progress

  Claude Bernard (2012). “An Introduction to the Study of Experimental Medicine”, p.186, Courier Corporation

  4 Copy quote

• The joy of discovery is certainly the liveliest that the mind of man can ever feel.

  Claude Bernard

  Science, Men, Discovery

  Claude Bernard (2012). “An Introduction to the Study of Experimental Medicine”, p.239, Courier Corporation

  10 Copy quote

• 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

  Ideas, Long, Intellectual

  Claude Bernard (2012). “An Introduction to the Study of Experimental Medicine”, p.69, Courier Corporation

  4 Copy quote

• We must alter theory to adapt it to nature, but not nature to adapt it to theory.‎

  Claude Bernard

  Nature, Science, Natural

  Claude Bernard (2012). “An Introduction to the Study of Experimental Medicine”, p.68, Courier Corporation

  9 Copy quote

• 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

  Science, Doe, Causes

  Claude Bernard, Henry Copley Greene (1957). “An Introduction to the Study of Experimental Medicine”, p.55, Courier Corporation

  4 Copy quote

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