Sheldon Amos, Popular Science Monthly (1874)
“ Here are let in all the obstacles inherent in human nature itself to acquiring a correct knowledge of facts. All the current imperfections of human observation, all the insufficiency of language and expression, all the chicanery and double-mindedness, all the dullness of intellect, by which it becomes so hard to pass truth on unimpaired from hand to hand, are present to hamper the effort to apply and execute a single law. The several forms of these obstacles, however, are not peculiar to any one state nor to any one period, however their magnitude may vary. ”
