David R. Fideler

“…The just man does not allow the several elements in his soul to usurp one another's functions; he is indeed one who sets his house in order, by self-mastery and discipline coming to be at peace with himself, and bringing into tune those three parts, tike the terms in the proportion of a musical scale, the highest and lowest notes and the mean between them, with all the intermediate intervals. Only when he has linked these parts together in well-tempered harmony and has made himself one man instead of many, will he be ready to go about whatever he may have to do, whether it be making money and satisfying bodily wants, or business transactions, or the affairs of state. In all these fields when he speaks of just and honorable conduct, he will mean the behavior that helps to produce and preserve this habit of mind; and by wisdom he will mean the knowledge which presides over such conduct. Any action which tends to break down this habit will be for him unjust; and the notions governing it he will call ignorance and folly. (My emphasis.)”
― David R. Fideler, The Pythagorean Sourcebook and Library: An Anthology of Ancient Writings Which Relate to Pythagoras and Pythagorean Philosophy