F.—But so are they.
PH.—Excellent fool! I thank thee for the better reason.
PHILOSOPHER.—I have been thinking of the pocopo.
FOOL.—Is it open to the public?
PH.—The pocopo is a small animal of North America, chiefly remarkable for singularity of diet. It subsists solely upon a single article of food.
F.—What is that?
PH.—Other pocopos. Unable to obtain this, their natural sustenance, a great number of pocopos die annually of starvation. Their death leaves fewer mouths to feed, and by consequence their race is rapidly multiplying.
F.—From whom had you this?
PH.—A professor of political economy.