In a word, I consider hospitals only as the entrance to scientific medicine; they are the first field of observation which a… — Claude Bernard Copy Share Image
Theories are like a stairway; by climbing, science widens its horizon more and more, because theories embody and necessarily include proportionately more… — Claude Bernard Copy Share Image
Effects vary with the conditions which bring them to pass, but laws do not vary. Physiological and pathological states are ruled by… — Claude Bernard Copy Share Image
The doubter is a true man of science: he doubts only himself and his interpretations, but he believes in science. — Claude Bernard Copy Share Image
Priestley [said] that each discovery we make shows us many others that should be made. — Claude Bernard Copy Share Image
The better educated we are and the more acquired information we have, the better prepared shall we find our minds for making… — Claude Bernard Copy Share Image
When entering on new ground we must not be afraid to express even risky ideas so as to stimulate research in all… — Claude Bernard Copy Share Image
Man can learn nothing unless he proceeds from the known to the unknown. — Claude Bernard Copy Share Image
Particular facts are never scientific; only generalization can establish science. — Claude Bernard Copy Share Image
As soon as the circumstances of an experiment are well known, we stop gathering statistics. ... The effect will occur always without… — Claude Bernard Copy Share Image
Laplace considers astronomy a science of observation, because we can only observe the movements of the planets; we cannot reach them, indeed,… — Claude Bernard Copy Share Image
The constancy of the internal environment is the condition for free and independent life: the mechanism that makes it possible is that… — Claude Bernard Copy Share Image
The joy of discovery is certainly the liveliest that the mind of man can ever feel. — Claude Bernard Copy Share Image
In these researches I followed the principles of the experimental method that we have established, i.e., that, in presence of a well-noted,… — Claude Bernard Copy Share Image
Man does not limit himself to seeing; he thinks and insists on learning the meaning of phenomena whose existence has been revealed… — 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… — Claude Bernard Copy Share Image
We must alter theory to adapt it to nature, but not nature to adapt it to theory. — Claude Bernard Copy Share Image
It is impossible to devise an experiment without a preconceived idea; devising an experiment, we said, is putting a question; we never… — 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
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