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How do you feel today?    I feel ...

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

This quote is about knowledge.

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A bit about Claude Bernard ...

Claude Bernard (July 12, 1813 February 10, 1878) was a French physiologist. He was called by Prof. I. Bernard Cohen of Harvard University, "one of the greatest of all men of science" in his Forward to the Dover edition (1957) of Bernard's classic on scientific method, An Introduction to the Study of Experimental Medicine (originally published in 1865).

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