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 ... more
A fact in itself is nothing. It is valuable only for the idea attached to it, or for the proof which it furnishes.
It is what we think we know already that often prevents us from learning.
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