Pigs eat grass if they are very hungry, but they can't use it as a regular source of food.
Marvin HarrisHindus and Westerners alike see in the meat-eating taboos of India a triumph of morals over appetite. This is a dangerous misrepresentation of cultural processes. Hindu vegetarianism was a victory not of spirit over matter but of reproductive over productive forces.
Marvin HarrisThere are very important and practical issues raised by following this alternative route which says, lets look to material conditions, to the systems of production, to the needs that human beings have, and to competing alternative solutions to the satisfaction of those needs.
Marvin HarrisWhen a woman gives birth to a child, the child needs to be able to digest the mother's milk; but when this child is old enough to begin to eat other foods, there is some switching off of this ability to consume milk.
Marvin Harris