Pigs eat grass if they are very hungry, but they can't use it as a regular source of food.
Marvin HarrisIn many ways the rise of the state was the descent of the world from freedom to slavery
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