Scientist: Claude Bernard, French physiologist.
Quote: The joy of discovery is certainly the liveliest that the mind of man can ever feel.
Major discourse on scientific method: An Introduction to the Study of Experimental Medicine (1865)
Known and Unknown. What makes a scientist important, he states, is how well he or she has penetrated into the unknown. In areas of science where the facts are known to everyone, all scientists are more or less equal—we cannot know who is great. But in the area of science that is still obscure and unknown the great are recognized: “They are marked by ideas which light up phenomena hitherto obscure and carry science forward.”