Book 10
1
Having now discussed the various kinds of Virtue, of Friendship and of Pleasure, it remains for us to treat in outline of Happiness, inasmuch as we count this to be the End of human life. But it will shorten the discussion if we recapitulate what has been said already.
2
Now we statedSee 1.8.9. that happiness is not a certain disposition of character; since if it were it might be possessed by a man who passed the whole of his chosen life asleep, living the life of a vegetable, or by one who was plunged in the deepest misfortune. If then we reject this as unsatisfactory, and feel bound to class happiness rather as some form of activity, as has been said in the earlier part of this treatise, and if activities are of two kinds, some merely necessary means and desirable only for the sake of something else, others desirable in themselves, it is clear that happiness is to be classed among activities desirable in themselves, and not among those desirable as a means to something else; since happiness lacks nothing, and is self-sufficient.
3
But those activities are desirable in themselves which do not aim at any result beyond the mere exercise of the activity. Now this is felt to be the nature of actions in conformity with virtue; for to do noble and virtuous deeds is a thing desirable for its own sake.
