Frédéric Bastiat,
Sophisms of the Protectionists
“ Do you lay down your pen to take up the blacking-brush in order to avoid paying tribute to the shoe-black? Does not the whole economy of society depend upon a separation of occupations, a division of labor, in a word, upon mutual exchange of production, by which we, one and all, make a calculation which causes us to discontinue direct production, when indirect acquisition offers us a saving of time and labor.You are not then sustained by practice, since it would be impossible, were you to search the world, to show us a single man who acts according to your principle. ”

