Was there ever a more ridiculous doctrine, than that a man's opinion of his own actions is the true standard for measuring them, and the certificate of their real qualities!--that his own estimate of his treatment of others; is to be taken as the true one, and such treatment be set down as _good_ treatment upon the strength of his judgment. He who argues the good treatment of the slave, from the slaveholder's _good opinion_ of such treatment, not only argues against human nature and all history, his own common sense, and even the testimony of his senses, but refutes his own arguments by his daily practice. Every body acts on the presumption that men's feelings will vary with their _practices_; that the light in which they view individuals and classes, and their feelings towards them, will modify their opinions of the treatment which they receive. In any case of treatment that affects himself, his church, or his political party, no man so stultifies himself as to argue that such treatment must be good, because the _author_ of it thinks so. Who would argue that the American Colonies were well treated by the mother country, because parliament thought so? Or that Poland was well treated by Russia, because Nicholas thought so? Or that the treatment of the Cherokees by Georgia is proved good by Georgia notions of it? Or that of the Greeks by the Turks, by Turkish opinions of it? Or that of the Jews by almost all nations, by the judgment of their persecutors? Or that of the victims of the Inquisition, by the opinions of the Inquisitor general, or of the Pope and his cardinals? Or that of the Quakers and Baptists, at the hands of the Puritans,--to be judged of by the opinions of the legislatures that authorized, and the courts that carried it into effect. All those classes of persons did not, in their own opinion, abuse their victims. If charged with perpetrating outrageous cruelty upon them, all those oppressors would have repelled the charge with indignation.