The composition of the bodies being varied, they may also be classified
according to the specific forms of the animals. Such, for instance,
would be the specific form of a man united to a body; for this form
is a quality of body, and it is reasonable to analyze it according to
the qualities. If it should be objected that we have said above that
some bodies are simple, while others are composite, thus contrasting
the simple and the composite, we shall answer that, without regarding
their composition, we have also said that they are either brute or
organized. The classification of bodies should not be founded on the
contrast between the simple and the composite, but, as we first did, we
may classify the simple bodies in the first rank. Then, by considering
their blendings, one may start from another principle to determine the
differences offered by the composites under the respect of their figure
or their location; thus, for instance, bodies might be classified
in celestial and terrestrial. This may close our consideration of
sense-being, or generation.