Plutarch De esu carnium I 4

[4] But nothing abashed us, not the flower-like tinting of the flesh, not the persuasiveness of the harmonious voice, not the cleanliness of their habits or the unusual intelligence that may be found in the poor wretches. No, for the sake of a little flesh we deprive them of sun, of light, of the duration of life to which they are entitled by birth and being. Then we go on to assume that when they utter cries and squeaks their speech is inarticulate, that they do not, begging for mercy, entreating, seeking justice, each one of them say, I do not ask to be spared in ease of necessity; only spare me your arrogance! Kill me to eat, but not to please your palate! Oh, the cruelty of it! What a terrible thing it is to look on when the tables of the rich are spread, men who employ cooks and spicers to groom the dead! And it is even more terrible to look on when they are taken away, for more is left than has been eaten. So the beasts died for nothing! There are others who refuse when the dishes are already set before them and will not have them cut into or sliced. Though they bid spare the dead, they did not spare the living. ¹

[4] But we are nothing put out of countenance, either by the beauteous gayety of the colors, or by the charmingness of the musical voices, or by the rare sagacity of the intellects, or by the cleanliness and neatness of diet, or by the rare discretion and prudence of these poor unfortunate animals; but for the sake of some little mouthful of flesh, we deprive a soul of the sun and light, and of that proportion of life and time it had been born into the world to enjoy. And then we fancy that the voices it utters and screams forth to us are nothing else but certain inarticulate sounds and noises, and not the several deprecations, entreaties, and pleadings of each of them, as it were saying thus to us: I deprecate not thy necessity (if such there be), but thy wantonness. Kill me for thy feeding, but do not take me off for thy better feeding. O horrible cruelty! It is truly an affecting sight to see the very table of rich people laid before them, who keep them cooks and caterers to furnish them with dead corpses for their daily fare; but it is yet more affecting to see it taken away, for the mammocks left are more than that which was eaten. These therefore were slain to no purpose. Others there are, who are so sparing of what is set before them that they will not suffer it to be cut or sliced; thus abstaining from them when dead, -while they would not spare them when alive.