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We must never make experiments to confirm our ideas, but simply to control them.

Claude Bernard

The stability of the internal medium is a primary condition for the freedom and independence of certain living bodies in relation to the environment surrounding them.
CLAUDE BERNARD

Body Environment Freedom Independence Live Medium Stability
Hatred is the most clear- sighted, next to genius.
CLAUDE BERNARD

Clear Genius Hate
We must alter theory to adapt it to nature, but not nature to adapt it to theory.‎
CLAUDE BERNARD

Adapt Nature Theory
It is what we know already that often prevents us from learning.
CLAUDE BERNARD

Deep Knowledge Learning Ourselves Prevent
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.
CLAUDE BERNARD

Constitute End Fact Happiness Hard Time Knowledge
The eloquence of a scientist is clarity; scientific truth is always more luminous when its beauty is unadorned than when it is tricked out in the embellishments with which our imagination would seek to clothe it.
CLAUDE BERNARD

Beautiful Imagination Ourselves Science Truth
We must never make experiments to confirm our ideas, but simply to control them.
CLAUDE BERNARD

Confirm Control Experiment Simplicity
But while I accept specialization in the practice, I reject it utterly in the theory of science.
CLAUDE BERNARD

Acceptance Myself Practice Science Theory
The doubter is a true man of science: he doubts only himself and his interpretations, but he believes in science.
CLAUDE BERNARD

Believe Doubt Man Science True
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.
CLAUDE BERNARD

Experiment Himself Seek True Worth
Men who believe too firmly in their theories, do not believe enough in the theories of others. So these despisers of their fellows make experiments only to destroy a theory, instead of to seek the truth.
CLAUDE BERNARD

Believe Enough Firm Man Seek Theory Truth
In the philosophic sense, observation shows and experiment teaches.
CLAUDE BERNARD

Experiment Observation Philosophy Teaching
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.
CLAUDE BERNARD

Illusion Influence Mental Mindset Thinking
Experiment is fundamentally only induced observation.
CLAUDE BERNARD

Experiment Fundamental Observation
A discovery is generally an unforeseen relation not included in theory.
CLAUDE BERNARD

Discover General Theory
The investigator should have a robust faith – and yet not believe.
CLAUDE BERNARD

Believe Faith Investigate

We must never make experiments to confirm our ideas, but simply to control them.

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We must never make experiments to confirm our ideas, but simply to control them.

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