Mark this which I am going to say once for all: If I had not force enough to project a principle full in the face of the half dozen most obvious facts which seem to contradict it, I would think only in single file from this day forward.
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Holmes' critique of "single file" thinking foreshadows Fyodor Dostoevsky's attack, in an essay of October 1876, on what he called "the straight-line approach". See Dostoevsky, A Writer's Diary, Vol. 1: 1873–1876 (Northwestern University Press, 1997), pp. 641–57, 721–29
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Ch. 3