The same year produced two new friends in England, in the same cause, but in a line in which no one had yet moved. David Hartley, then a member of parliament for Hull, and the son of Dr. Hartley who wrote the _Essay on Man_, found it impossible any longer to pass over without notice the case of the oppressed Africans. He had long felt for their wretched condition, and, availing himself of his legislative situation, he made a motion in the House of Commons, "That the Slave Trade was contrary to the laws of God, and the rights of men." In order that he might interest the members as much as possible in his motion, he had previously obtained some of the chains in use in this cruel traffic, and had laid them upon the table of the House of Commons. His motion was seconded by that great patriot and philanthropist, Sir George Saville. But though I am now to state that it failed, I cannot but consider it as a matter of pleasing reflection, that this great subject was first introduced into parliament by those who were worthy of it; by those who had clean hands and an irreproachable character, and to whom no motive of party or faction could be imputed, but only such as must have arisen from a love of justice, a true feeling of humanity, and a proper sense of religion. About this time two others, men of great talents and learning, promoted the cause of the injured Africans, by the manner in which they introduced them to notice in their respective works. Dr. Adam Smith, in his _Theory of Moral Sentiments_, had, so early as the year 1759, held them up in an honourable, and their tyrants in a degrading light. "There is not a Negro from the coast of Africa, who does not, in this respect, possess a degree of magnanimity which the soul of his sordid master is too often scarce capable of conceiving. Fortune never exerted more cruelly her empire over mankind, than when she subjected those nations of heroes to the refuse of the gaols of Europe, to wretches who possess the virtue neither of the countries they came from, nor of those they go to, and whose levity, brutality, and baseness so justly expose them to the contempt of the vanquished." And now, in 1776, in his _Wealth of Nations_ he showed in a forcible manner (for he appealed to the interest of those concerned,) the dearness of African labour; or the impolicy of employing slaves.