Claude Bernard (1813–78) was a French physiologist. Historian Ierome 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.
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The doubter is a true man of science; he doubts only himself and his interpretations, but he believes in science.
—Claude Bernard
Topics: Science
Man cannot learn anything except by going from the known to the unknown.
—Claude Bernard
Topics: Discovery
Science increases our power in proportion as it lowers our pride.
—Claude Bernard
Topics: Science
The experimenter who does not know what he is looking for will not understand what he finds.
—Claude Bernard
Topics: Experiment
It is what we think we know already that often prevents us from learning.
—Claude Bernard
Topics: Knowledge
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
Topics: Facts
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.
—Claude Bernard
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