Dr. Whewell puts the last hand to his supposed refutation of Bentham’s principle, by what he thinks a crushing reductio ad absurdum. The reader might make a hundred guesses before discovering what this is. We have not yet got over our astonishment, not at Bentham, but at Dr. Whewell. See, he says, to what consequences your greatest-happiness principle leads! Bentham says that it is as much a moral duty to regard the pleasures and pains of other animals as those of human beings. . . .
This noble anticipation, in 1780, of the better morality of which a first dawn has been seen in the laws enacted nearly fifty years afterwards against cruelty to animals, is in Dr. Whewell’s eyes the finishing proof that the morality of happiness is absurd!
The pleasures of animals are elements of a very different order from the pleasures of man. We are bound to endeavour to augment the pleasures of men, not only because they are pleasures, but because they are human pleasures. We are bound to men by the universal tie of humanity, of human brotherhood. We have no such tie to animals. [Lectures, p. 223.]
This then is Dr. Whewell’s noble and disinterested ideal of virtue. Duties, according to him, are only duties to ourselves and our like.
We are to be humane to them, because we are human, not because we and they alike feel animal pleasures. . . . The morality which depends upon the increase of pleasure alone, would make it our duty to increase the pleasure of pigs or of geese rather than that of men, if we were sure that the pleasures we could give them were greater than the pleasures of men. … It is not only not an obvious, but to most persons not a tolerable doctrine, that we may sacrifice the happiness of men provided we can in that way produce an overplus of pleasure to cats, dogs, and hogs. (Pp. 223-5.)
It is “to most persons” in the Slave States of America not a tolerable doctrine that we may sacrifice any portion of the happiness of white men for the sake of a greater amount of happiness to black men. It would have been intolerable five centuries ago “to most persons” among the feudal nobility, to hear it asserted that the greatest pleasure or pain of a hundred serfs ought not to give way to the smallest of a nobleman. According to the standard of Dr. Whewell the slavemasters and the nobles were right. They too felt themselves “bound” by a “tie of brotherhood” to the white men and to the nobility, and felt no such tie to the negroes and serfs. And if a feeling on moral subjects is right because it is natural, their feeling was justifiable. Nothing is more natural to human beings, nor, up to a certain point in cultivation, more universal, than to estimate the pleasures and pains of others as deserving of regard exactly in proportion to their likeness to ourselves. These superstitions of selfishness had the characteristics by which Dr. Whewell recognizes his moral rules; and his opinion on the rights of animals shows that in this case at least he is consistent. We are perfectly willing to stake the whole question on this one issue. Granted that any practice causes more pain to animals than it gives pleasure to man; is that practice moral or immoral? And if, exactly in proportion as human beings raise their heads out of the slough of selfishness, they do not with one voice answer “immoral,” let the morality of the principle of utility be for ever condemned.
Texto de autoria do filósofo e economista John Stuart Mill em “Whewell on Moral Philosophy, Collected Works , vol. X”, pg. 185-187, publicado em 1833. http://oll.libertyfund.org/titles/mill-the-collected-works-of-john-stuart-mill-volume-x-essays-on-ethics-religion-and-society