[195] For the Creator knew that it was desirable that each of these parts should not hear the voice of its neighbour, but that the parts of the soul should each exert its own peculiar faculties without confusion, for the advantage of living animals, and should, with the same object, be deprived of any power of exerting themselves in common, and that all the powers of vice should be brought to confusion and utter destruction, so that they might neither in confederacy, nor separately, be injurious to the better parts.