The Best Claude Bernard quotes

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Who was Claude Bernard? What did he do? Surprisingly, not many people know who this famous scientist is. Even fewer people realize the importance of his work. This blog post will introduce you to Claude Bernard and explain why his research is so important for entrepreneurs.

Discover the strongest Science, Discovery, Ory, Experiment quotes from Claude Bernard, and much more.


About Claude Bernard

birth of the author

12 July 1813

death of the author

10 February 1878

country of the author


college of the author

Alma Mater:
University Of Paris

knownfor of the author

Known For:

award of the author

Baly Medal

occupation of the author


institution of the author

MusΓ©um National D’Histoire Naturelle


Experimentation is an active science. β€” Claude Bernard

Obervation is a passive science, experimentation is an active science. β€” Claude Bernard

Science rejects the indeterminate. β€” Claude Bernard

Science admits no exceptions; otherwise there would be no determinism in science, or rather, there would be no science. β€” Claude Bernard

experimentation is an active science Claude Bernard quote

Art is I; science is we. β€” Claude Bernard

True science teaches us to doubt and, in ignorance, to refrain. β€” Claude Bernard

Particular facts are never scientific; only generalization can establish science. β€” Claude Bernard

The doubter is a true man of science: he doubts only himself and his interpretations, but he believes in science. β€” Claude Bernard

First causes are outside the realm of science. β€” Claude Bernard

obervation is a passive science experimentation is an active science Claude Bernard quote

Science increases our understanding in proportion as it lowers our pride. β€” Claude Bernard

But while I accept specialization in the practice, I reject it utterly in the theory of science. β€” Claude Bernard

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. ‘ β€” Claude Bernard

Theories are like a stairway; by climbing, science widens its horizon more and more, because theories embody and necessarily include proportionately more facts as they advance. β€” Claude Bernard

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

science rejects the indeterminate Claude Bernard quote

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. β€” Claude Bernard

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. β€” Claude Bernard

Well–observed facts, though brought to light by passing theories, will never die; they are the material on which alone the house of science will at last be built. β€” Claude Bernard

In science, the best precept is to alter and exchange our ideas as fast as science moves ahead. β€” Claude Bernard


Those who do not know the torment of the unknown cannot have the joy of discovery. β€” Claude Bernard

those who do not know the torment of the unknown cannot have the joy of discovery Claude Bernard quote

Priestley [said] that each discovery we make shows us many others that should be made. β€” Claude Bernard

Love is the greatest joy of discovery one can feel! β€” Claude Bernard

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. β€” Claude Bernard

The experimenter who does not know what he is looking for will not understand what he finds. β€” Claude Bernard


Experiment is fundamentally only induced observation. β€” Claude Bernard

experiment is fundamentally only induced observation Claude Bernard quote

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. β€” Claude Bernard

The true worth of a researcher lies in pursuing what he did not seek in his experiment as well as what he sought. β€” Claude Bernard

In the philosophic sense, observation shows and experiment teaches. β€” Claude Bernard

Redundant Thematics

In Claude Bernard Statements


We must never make experiments to confirm our ideas, but simply to control them. β€” Claude Bernard


A discovery is generally an unforeseen relation not included in theory. β€” Claude Bernard

a discovery is generally an unforeseen relation not included in theory Claude Bernard quote

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. β€” Claude Bernard

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. β€” Claude Bernard

We must alter theory to adapt it to nature, but not nature to adapt it to theory. β€” Claude Bernard

Inspiring Phrases From Claude Bernard

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. β€” Claude Bernard

We must remain, in a word, in an intellectual disposition which seems paradoxical, but which, in my opinion, represents the true mind of the investigator. We must have a robust faith and yet not believe. β€” Claude Bernard

the terrain is everything the germ is nothing Claude Bernard quote

The minds that rise and become really great are never self–satisfied, but still continue to strive. β€” Claude Bernard

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. β€” Claude Bernard

The terrain is everything; the germ is nothing. β€” Claude Bernard

The investigator should have a robust faith–and yet not believe. β€” Claude Bernard

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

Various Statements From Claude Bernard

The joy of discovery is certainly The liveliest that The mind of man can ever feel. β€” Claude Bernard

Hatred is the most clear–sighted, next to genius. β€” Claude Bernard

Feeling alone guides the mind. β€” Claude Bernard

The fact that knowledge endlessly recedes as the investigator is about to grasp it is what constitutes at the same time his torment and happiness. β€” Claude Bernard

Man can learn nothing except by going from the known to the unknown. CLAUDE BERNARD β€” Julia Cameron

the joy of discovery is certainly the liveliest that the mind of man can ever feel Claude Bernard quote

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. β€” Claude Bernard

Mediocre men often have the most acquired knowledge. β€” Claude Bernard