EVEN THE EXISTENCE OF THE DARKNESS MUST BE RELATED TO THE SOUL.
If matter is also said to be the cause of evil, where does it originate? For the darkness existed already, as say (the Gnostics), when the soul has seen and illuminated them. From whence (comes darkness)? If (the Gnostics) answer that it is the soul herself that created (darkness) by inclining (downwards to matter), then evidently (the darkness) did not exist before the inclination of the soul. Darkness therefore is not the cause of this inclination; the cause is in the nature of the soul. This cause may thus be related to preceding necessities, and as a result to first principles.[365]