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… — Claude Bernard Copy Share Image
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… — Claude Bernard Copy Share Image
In every enterprise ... the mind is always reasoning, and, even when we seem to act without a motive, an instinctive logic still directs… — Claude Bernard Copy Share Image
Descriptive anatomy is to physiology what geography is to history, and just as it is not enough to know the typography of a country… — Claude Bernard Copy Share Image
Mediocre men often have the most acquired knowledge. It is in the darker. It is in the darker regions of science that great men… — Claude Bernard Copy Share Image
Ardent desire for knowledge, in fact, is the one motive attracting and supporting investigators in their efforts; and just this knowledge, really grasped and… — Claude Bernard Copy Share Image
If I had to define life in a single phrase, I should clearly express my thought of throwing into relief one characteristic which, in… — Claude Bernard Copy Share Image
Even mistaken hypotheses and theories are of use in leading to discoveries. This remark is true in all the sciences. The alchemists founded chemistry… — Claude Bernard Copy Share Image
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… — Claude Bernard Copy Share Image
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 Copy Share Image
We must remain, in a word, in an intellectual disposition which seems paradoxical, but which, in my opinion, represents the true mind of the… — Claude Bernard Copy Share Image
The fact that knowledge endlessly recedes as the investigator is about to grasp it is what constitutes at the same time his torment and… — Claude Bernard Copy Share Image
