It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. - Arthur Conan Doyle (The Adventures of Sherlock Holmes Quotes)

It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts.

Source:1. A Scandal in Bohemia
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