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  • Let me run over the principal steps. We approached the case, you remember, with an absolutely blank mind, which is always an advantage. We had formed no theories. We were simply there to observe and to draw inferences from our observations.

    Sherlock Holmes in "The Adventure of the Cardboard Box" (1893). In "The Adventure of the Greek Interpreter" (1893) Holmes tells Doctor Watson, "All things should be seen exactly as they are."