At this point
there has been much disagreement, as to whether
these are parts
of rhetoric, or, as Athenaeus
of rhetoric, which the Greeks call
But they cannot correctly be called elements.
For in that case we should have to regard
them merely as first-principles, like the moisture, fire,
matter or atoms of which the universe is said to be
composed. Nor is it correct to call them duties, since
they are not preformed by others, but perform something themselves. We must therefore conclude that
they are parts.