12. What other scheme of analysis of quality could we find, if the
above were declared unsatisfactory? Must we distinguish first the
qualities of the soul from those of the body, and then analyse the
latter according to the senses, relating them to sight, hearing, taste,
smell and touch?
To begin with, how can the qualities of the soul be divided? Will they
be related to the faculty of desire, to anger, or reason? Will they
be divided according to their suitable operations, or according to
their useful or harmful character? In this case, would we distinguish
several ways of being useful or harmful? Should we then likewise divide
the properties of the bodies according to the difference of their
effects, or according to their useful or harmless character, since this
character is a property of quality? Surely; to be useful or harmful
seems to be the property of both the quality, and the thing qualified.
Otherwise, we should have to seek some other classification.