"They were ... pure and unadulterated photographs, and sometimes they hinted at the existence of visual truths that had escaped all other systems of detection."

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Detection is, or ought to be, an exact science, and should be treated in the same cold and unemotional manner. You have attempted to tinge it with romanticism, which produces much the same effect as if you worked a love-story or an elopement into the fifth proposition of Euclid.

— Arthur Conan Doyle