... Wisdom is both knowledge (έπιστήµη) and intuitive intelligence (voṽs) ... Prudence (øϱóνησιs) on the other hand is concerned with the affairs of men and with things that can be the object of deliberation. For we say that to deliberate well is the most characteristic function of the prudent man; but no one deliberates about things that cannot vary nor yet about things that are not a means to some end and that end a good attainable by action; and a good deliberator in general is a man who can arrive by calculation at the best of the goods attainable by man.