Arthur Conan Doyle quote about knowledge from A Study in Scarlet - If you were asked to prove that two and two made four, you might find some difficulty, and yet you are quite sure of the fact.
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If you were asked to prove that two and two made four, you might find some difficulty, and yet you are quite sure of the fact.
 Arthur Conan Doyle, A Study in Scarlet (1887). copy citation

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Author Arthur Conan Doyle
Source A Study in Scarlet
Topic knowledge proof facts
Date 1887
Language English
Reference
Note
Weblink http://www.gutenberg.org/files/244/244-h/244-h.htm

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