Food, superstitions about; choice of; digestion of; from the sea vs. food from land. See Diet.
Fortuna Primigenia, Worship of.
Fortune, temples of; of the Romans; essay on; various opinions of.
Four, the number, venerated by Pythagoreans.
Four species of animals.
Fox, cunning of the.
Freedom of speech, ill-advised.
Friends, folly of seeking many; discerning flatterers from.
Friendship, a dual relation; enmities an accompaniment of; constancy a requisite in.
Frogs, breeding of.