All men agree that a just distribution must be according to merit in some sense; they do not all specify the same sort of merit, but democrats identify it with freemen, supporters of oligarchy with wealth (or noble birth), and supporters of aristocracy with excellence.
There is an ideal of excellence for any particular craft or occupation; similarly there must be an excellent that we can achieve as human beings. That is, we can live our lives as a whole in such a way that they can be judged not just as excellent in this respect or in that occupation, but as excellent, period. Only when we develop our truly human capacities sufficiently to achieve this human excellent will we have lives blessed with happiness.
The truth of an upright man must be accepted on his own terms. Moreover, since natures vary, we must agree that all the beauties of human excellence may be fostered by faiths that we do not share.
We are what we repeatedly do... excellence, therefore, isn't just an act, but a habit and life isn't just a series of events, but an ongoing process of self-definition.