Chapter II. The discussions among philosophers about the comparison between what is virtuous and what is useful have nothing to do with Christians. For with them nothing is useful which is not just. What are the duties of perfection, and what are ordinary duties? The same words often suit different things in different ways. Lastly, a just man never seeks his own advantage at the cost of another's disadvantage, but rather is always on the lookout for what is useful to others. · Sacred Texts