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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"Socialism is a dangerous delusion."
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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.