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The good plan itself, this comes not of its own accord; it is the fruit of “genius” (which means transcendent capacity of taking trouble, first of all)
Attribution contested
Genius is an infinite capacity for taking pains is one of the most quoted sentences in English and Carlyle did not write it. This is what he wrote, and the differences are real: transcendent, not infinite; trouble, not pains; and first of all, which concedes that taking trouble is only where genius starts. The familiar wording appears later in the century in other hands and is usually traced to Jane Ellice Hopkins in 1870. Carlyle got the credit because he got there first with the thought.