“We clearly see certain animals execute labours which concur to a common end, and which to a certain point appear to have been concerted; or fight for the possession of what they desire, or supplicate to obtain it; but nothing announces that they really make formal exchanges. The reason, I think, is that they have not a language sufficiently developed to enable them to make express conventions; and this, I think, proceeds . . . from their being incapable of sufficiently decomposing their ideas, to generalise, to abstract, and to express them separately in detail, and in the form of a proposition; whence it happens that those of which they are susceptible, are all particular, confused with the attributes, and manifest themselves in mass by interjections, which can explain nothing explicitly. Man, on the contrary, who has the intellectual means which are wanting to them is naturally led to avail himself of them, to make conventions with his fellow beings. They make no exchanges, and he does.”
Antoine Louis Claude Destutt, comte de Tracy, A Treatise on Political Economy (Georgetown, D.C.: Joseph Mulligan, publisher; W. A. Rind & Co., printer, 1817) Thomas Jefferson, ed. of translation, from the section entitled “The First Part of the Treatise on the Will and Its Effects: Of Our Actions,” chapter one, “Of Society.”