"On these occasions I have noticed such a dreamy, vacant expression in [Holmes’] eyes, that I..."

“On these occasions I have noticed such a dreamy, vacant expression in [Holmes’] eyes, that I might have suspected him of being addicted to the use of some narcotic, had not the temperance and cleanliness of his whole life forbidden such a notion.”

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A Study in Scarlet

Behold, the most inaccurate sentence in the history of English literature.