[16] [cap.5] It is then confessed by all most undeniably, that it is both honourable and advantageous to yield and to become obedient to virtue, so that on the other hand to be disobedient to it must be disgraceful and in no moderate degree disadvantageous. And to be contentious and obstinate is a quality which comprehends every extravagance of evil; for the man who is disobedient is less wicked than he who is contentious, since the one only disregards what he is commanded to do, but the other also exerts himself to do the contrary.