Among the most characteristic effects of the onset of "romanticism" in the eighteenth century was the underinining of the "classical" ethics, based on rational selfdiscipline, by the "romantic" or humanitarian ethics, based on benevolism. A useful indication of the point at which this change in ethics occurred is the moment in which the institution of Negro slavery was attacked by benevolistic theory. As Trevelyan says, the anti-slavery movement was "the first successful propagandist agitation of the modern type" ; years before (...) the eighteenth century there had been sporadic objection against Negro slavery, especially religious objection because Negro slaves were commonly not considered "children of God." But until Francis Hutcheson's System of Moral Philosophy , no writer formulated ethical principles inimical to slavery as an institution. (shrink)