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 dose.
Claude BernardRead
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.
Interpretation
The pursuit of knowledge can be both frustrating and rewarding.
This quote by Claude Bernard reflects the paradox of knowledge where the more one seeks to understand, the more elusive that understanding becomes. It captures the dual nature of intellectual pursuit, where the investigator experiences the agony of never fully grasping knowledge, while simultaneously finding joy in the relentless quest for learning and discovery.
In practice
In a speech about lifelong learning, a speaker might quote Bernard to emphasize the joy and challenges of seeking knowledge.
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 dose.
When a physician is called to a patient, he should decide on the diagnosis, then the prognosis, and then the treatment. ... Physicians must know the evolution of the disease, its duration and gravity in order to predict its course and outcome. Here statistics intervene to guide physicians, by teaching them the proportion of mortal cases, and if observation has also shown that the successful and unsuccessful cases can be recognized by certain signs, then the prognosis is more certain.
The goal of scientific physicians in their own science ... is to reduce the indeterminate. Statistics therefore apply only to cases in which the cause of the facts observed is still indeterminate.
Theories are like a stairway; by climbing, science widens its horizon more and more, because theories embody and necessarily include proportionately more facts as they advance.
True science teaches us to doubt and, in ignorance, to refrain.
Now, a living organism is nothing but a wonderful machine endowed with the most marvellous properties and set going by means of the most complex and delicate mechanism.
Take advantage of the ambiguity in the world. Look at something and think what else it might be.
The belief that youth is the happiest time of life is founded on fallacy. The happiest person is the person who thinks the most interesting thoughts, and we grow happier as we grow older.
My experience has taught me that a man who has no vices has damned few virtues.
Loving kindness towards ourselves doesn't mean getting rid of anything. It means we can still be crazy after all these years. We can still be angry after all these years. We can still be timid or jealous or full of feelings of unworthiness. The point is not to try to throw ourselves away and become something better. It's about befriending who we are already.
There are no means of attaining faith and certainty except through the Qur'an.
I have observed that the world has suffered far less from ignorance than from pretensions to knowledge. It is not skeptics or explorers but fanatics and ideologues who menace decency and progress. No agnostic ever burned anyone at the stake or tortured a pagan, a heretic, or an unbeliever.
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