[105] for it is impossible for two hostile natures to inhabit one soul, namely, for wickedness and virtue, for which reason, when they do come together, endless and irreconcilable seditions and wars are kindled between them; and yet this is the case though virtue is of a most peaceful disposition, and, as they say, is anxious whenever it is about to come to a contest of strength to make trial of its own powers first, so as only to contend if it has a prospect of being able to gain the victory; but if it finds its power unequal to the conflict, then it will never dare to descend into the arena at all,