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Use "sedulousness" in a sentence
"A brief glance showed more than the habitual expression, a sedulousness -- some passionate feeling?"
"Not the least among his merits is the sedulousness he exhibited in the collection of evidence."
"Translating hints into statements and guessing at reservations, I would say that the French fall very short of admiration of the way in which our higher officers set about their work, they are disagreeably impressed by a general want of sedulousness and close method in our leading."