Claude Bernard Quotes About Observation

Quotes about: Observation

• 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

• In a word, I consider hospitals only as the entrance to scientific medicine; they are the first field of observation which a physician enters; but the true sanctuary of medical science is a laboratory; only there can he seek explanations of life in the normal and pathological states by means of experimental analysis.

  Claude Bernard

  Life, Mean, Science

  Claude Bernard (2012). “An Introduction to the Study of Experimental Medicine”, p.168, Courier Corporation

• [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.

  Claude Bernard

  Science, Discovery, Ideas

• Obervation is a passive science, experimentation is an active science.

  Claude Bernard

  Science, Observation, Passive

• In the philosophic sense, observation shows and experiment teaches.

  Claude Bernard

  Science, Observation, Teach

  Claude Bernard (2012). “An Introduction to the Study of Experimental Medicine”, p.35, Courier Corporation

• Man does not limit himself to seeing; he thinks and insists on learning the meaning of phenomena whose existence has been revealed to him by observation. So he reasons, compares facts, puts questions to them, and by the answers which he extracts, tests one by another. This sort of control, by means of reasoning and facts, is what constitutes experiment, properly speaking; and it is the only process that we have for teaching ourselves about the nature of things outside us.

  Claude Bernard

  Teaching, Mean, Science

• Men who have excessive faith in their theories ... make poor observations, because they choose among the results of their experiments only what suits their object, neglecting whatever is unrelated to it and carefully setting aside everything which might tend toward the idea they wish to combat

  Claude Bernard

  Science, Men, Ideas

  Claude Bernard, Henry Copley Greene (1957). “An Introduction to the Study of Experimental Medicine”, p.38, Courier Corporation

• Laplace considers astronomy a science of observation, because we can only observe the movements of the planets; we cannot reach them, indeed, to alter their course and to experiment with them. "On earth," said Laplace, "we make phenomena vary by experiments; in the sky, we carefully define all the phenomena presented to us by celestial motion." Certain physicians call medicine a science of observations, because they wrongly think that experimentation is inapplicable to it.

  Claude Bernard

  Science, Thinking, Sky

  Claude Bernard (2012). “An Introduction to the Study of Experimental Medicine”, p.47, Courier Corporation

• 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.

  Claude Bernard

  Science, Goal, Physicians

  Claude Bernard (2012). “An Introduction to the Study of Experimental Medicine”, p.161, Courier Corporation

• When a physician is called to a patient, he should decide on the diagnosis, then the prognosis, and then the treatment. ... Physicians must know the evolution of the disease, its duration and gravity in order to predict its course and outcome. Here statistics intervene to guide physicians, by teaching them the proportion of mortal cases, and if observation has also shown that the successful and unsuccessful cases can be recognized by certain signs, then the prognosis is more certain.

  Claude Bernard

  Teaching, Successful, Science

  Claude Bernard (2012). “An Introduction to the Study of Experimental Medicine”, p.231, Courier Corporation

• Experiment is fundamentally only induced observation.

  Claude Bernard

  Science, Observation, Experiments

  Introduction to the Study of Experimental Medicine (1865) Pt I, Sect. V

• I do not ... reject the use of statistics in medicine, but I condemn not trying to get beyond them and believing in statistics as the foundation of medical science. ... Statistics ... apply only to cases in which the cause of the facts observed is still [uncertain or] indeterminate. ... There will always be some indeterminism ... in all the sciences, and more in medicine than in any other. But man's intellectual conquest consists in lessening and driving back indeterminism in proportion as he gains ground for determinism by the help of the experimental method.

  Claude Bernard

  Believe, Science, Men

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