Book 1
prol.10
The philosophy of the Egyptians is described as follows so far as relates to the gods and to justice. They say that matter was the first principle, next the four elements were derived from matter, and thus living things of every species were produced.
prol.10
The sun and the moon are gods bearing the names of Osiris and Isis respectively; they make use of the beetle, the dragon, the hawk, and other creatures as symbols of divinity, according to Manetho in his Epitome of Physical Doctrines, and Hecataeus in the first book of his work On the Egyptian Philosophy. They also set up statues and temples to these sacred animals because they do not know the true form of the deity.
prol.11
They hold that the universe is created and perishable, and that it is spherical in shape. They say that the stars consist of fire, and that, according as the fire in them is mixed, so events happen upon earth; that the moon is eclipsed when it falls into the earth’s shadow; that the soul survives death and passes into other bodies; that rain is caused by change in the atmosphere; of all other phenomena they give physical explanations, as related by Hecataeus and Aristagoras. They also laid down laws on the subject of justice, which they ascribed to Hermes; and they deified those animals which are serviceable to man. They also claimed to have invented geometry, astronomy, and arithmetic. Thus much concerning the invention of philosophy.