Arthur Conan Doyle — "It is a capital mistake to theorize before one has data."
It is a capital mistake to theorize before one has data.
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More from Arthur Conan Doyle
"The past is never truly dead; it lives on in the present."
"The most dangerous condition for a man or a nation is when his intellectual side is more developed than his spiritual. Is that not exactly the condition of the world today?"
"For strange effects and extraordinary combinations we must go to life itself, which is always far more daring than any effort of the imagination."
"My dear Watson, you were in my mind, just as I was in yours."
"The greatest danger in life is to be too safe."
About Arthur Conan Doyle (1859-1930)
Scottish physician and author whose Sherlock Holmes (created 1887) became the most-portrayed literary character in film and television history. Closely associated with G.K. Chesterton (Father Brown detective creator and Edwardian contemporary) and Wilkie Collins (earlier detective-fiction predecessor (The Moonstone)). For an intellectual contrast, see Harry Houdini, American escape artist and skeptic — Houdini publicly debunked the spiritualist mediums Doyle endorsed; Doyle insisted Houdini was secretly using real psychic powers. Their 1920s friendship-then-feud is the cleanest 'magician's debunking vs Sherlock-Holmes-author's credulity' irony in cultural history — the rationalist's creator believed the impossible.