Herennius, (the pagan) Origen, and Plotinos had agreed to keep secret
the teachings they had received from Ammonius. Plotinos carried out his
agreement. Herennius was the first one to break it, and Origen followed
his example. The latter limited himself to writing a book entitled,
"Of Daemons;" and, under the reign of Gallienus, he wrote another one
to prove that "The Emperor alone is the Only Poet" (if the book was
a flattery; which is not likely. Therefore it probably meant: "The
King (of the universe, that is, the divine Intelligence), is the only
'demiurgic' Creator.")