"Man makes use of flesh not out of want and necessity, seeing that he has the liberty to make his choice of herbs and fruits, the plenty of which is inexhaustible; but out of luxury, and being cloyed with necessaries, he seeks after impure and inconvenient diet, purchased by the slaughter of living beasts; by showing himself more cruel than the most savage of wild beasts....were it only to learn benevolence to human kind, we should be merciful to other creatures."-Plutarch, c. A.D. 46-c. 120, Moralia