[72] [cap.21] But it is the nature of sophists to have for enemies the faculties which are in them, while their language is at variance with their thoughts and their thoughts with their language, and while neither is in the least degree consistent with the other. At all events, they wear out our ears, arguing that justice is a great bond of society, that temperance is a profitable thing, that continence is a virtuous thing, that piety is a most useful thing, and, of each other virtue, that it is a most wholesome and saving quality. And, on the other hand, that injustice is a quality with which we ought to have no truce, that intemperance is a diseased habit, that impiety is scandalous, and so going through every kind of wickedness, that each sort is most pernicious.