If you insist that the Good must be genus, we will grant it, as a
posterior genus; for it will be posterior to being. Now the existence
of (the Aristotelian) "essence,"[321] although it be always united to
Essence, is the Good itself; while the primary genera belong to Essence
for its own sake, and form "being." Hence we start to rise up to the
absolute Good, which is superior to Essence; for it is impossible for
essence and "being" not to be manifold; essence necessarily includes
the above-enumerated primary genera; it is the manifold unity.