Claude Bernard Quotes

Claude Bernard was a French physiologist. Historian I. Bernard Cohen of Harvard University called Bernard "one of the greatest of all men of science". Among many other accomplishments, he was one of the first to suggest the use of blind experiments to ensure the objectivity of scientific observations. He originated the term milieu intérieur, and the associated concept of homeostasis . Wikipedia

✵ 12. July 1813 – 10. February 1878

Claude Bernard photo

Claude Bernard: 21 quotes1 like

Famous Claude Bernard Quotes

“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.”

Introduction à l'Étude de la Médecine Expérimentale (1865)

“It's what we think we know that keeps us from learning.”

“We must never make experiments to confirm our ideas, but simply to control them.”

Bulletin of New York Academy of Medicine, Vol. IV (1928)

“Observation is a passive science, experimentation an active science.”

Introduction à l'Étude de la Médecine Expérimentale (1865)

“Science does not permit exceptions.”

Lessons of Experimental Pathology (1855-1856)

“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.”

Pensées (1937).

Claude Bernard Quotes about science

“The science of life is a superb and dazzlingly lighted hall which may be reached only by passing through a long and ghastly kitchen.”

Source: Introduction à l'Étude de la Médecine Expérimentale (1865)

“A modern poet has characterized the personality of art and the impersonality of science as follows: Art is I: Science is We.”

Bulletin of New York Academy of Medicine, Vol. IV (1928)

“Science repulses the indefinite.”

Introduction à l'Étude de la Médecine Expérimentale (1865)

“Ardent desire for knowledge, in fact, is the one motive attracting and supporting investigators in their efforts; and just this knowledge, really grasped and yet always flying before them, becomes at once their sole torment and their sole happiness…. 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.”

Introduction à l'Étude de la Médecine Expérimentale (1865)

“Science admits no exceptions; otherwise there would be no determinism in science, or rather, there would be no science.”

Leçons de Pathologie Expérimentale (1872).

“True science teaches us to doubt and to abstain from ignorance.”

Bulletin of New York Academy of Medicine, Vol. IV (1928)

Claude Bernard Quotes

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

Bulletin of New York Academy of Medicine, Vol. IV (1928)

“Theories are only verified 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.”

Introduction à l'Étude de la Médecine Expérimentale (1865)

“Indeed, 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.”

Introduction à l'Étude de la Médecine Expérimentale (1865)

“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.”

Leçons sur les Phénomènes de la Vie Communs aux Animaux et aux Végétaux (1878-1879).

“Science increases our power in proportion as it lowers our pride.”

Bulletin of New York Academy of Medicine, Vol. IV (1928)

“All the vital mechanisms, varied as they are, have only one object, that of preserving constant the conditions of life in the internal environment.”

Leçons sur les Phénomènes de la Vie Communs aux Animaux et aux Végétaux.

“They 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.”

Introduction à l'Étude de la Médecine Expérimentale (1865)

“A great surgeon performs operations for stone by a single method; later he makes a statistical summary of deaths and recoveries, and he concludes from these statistics that the mortality law for this operation is two out of five. Well, I say that this ratio means literally nothing scientifically and gives us no certainty in performing the next operation; for we do not know whether the next case will be among the recoveries or the deaths. What really should be done, instead of gathering facts empirically, is to study them more accurately, each in its special determinism…. to discover in them the cause of mortal accidents so as to master the cause and avoid the accidents.”

Introduction à l'Étude de la Médecine Expérimentale (1865)

“If I had to define life in a word, it would be: Life is creation.”

Bulletin of New York Academy of Medicine, Vol. IV (1928)

Similar authors

Charles Maurice de Talleyrand-Périgord photo

Charles Maurice de Talleyrand-Périgord12

French diplomat None

Anatole France photo

Anatole France122

French writer None

Sarah Bernhardt photo

Sarah Bernhardt11

French actress None

Alfred de Musset photo

Alfred de Musset4

French writer None

Claude Debussy photo

Claude Debussy34

French composer None

Pierre Curie photo

Pierre Curie1

French physicist None

Napoleon I of France photo

Napoleon I of France259

French general, First Consul and later Emperor of the French None

Stendhal50

French writer None

Auguste Comte photo

Auguste Comte23

French philosopher None

Claude Monet photo

Claude Monet87

French impressionist painter None

Similar authors

Charles Maurice de Talleyrand-Périgord photo

Charles Maurice de Talleyrand-Périgord12

French diplomat None

Anatole France photo

Anatole France122

French writer None

Sarah Bernhardt photo

Sarah Bernhardt11

French actress None

Alfred de Musset photo

Alfred de Musset4

French writer None

Claude Debussy photo

Claude Debussy34

French composer None