Claude Bernard Quotes

It is what we know already that often prevents us from learning.

The experimenter who does not know what he is looking for will not understand what he finds.

Man can learn nothing except by going from the known to the unknown."

Art is 'I'; science is 'we'.

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

A fact in itself is nothing. It is valuable only for the idea attached to it, or for the proof which it furnishes.

Mediocre men often have the most acquired knowledge.

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.

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

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