Happiness arises from noble and preferred actions; hence it is noble throughout, just as performance on the pipes is skilled throughout.576 For employing material things does not compromise the purely noble character of happiness, any more than using instruments compromises the wholly skilled character of medical activity. For every action is some activity of the soul.577
Parts of Activity and Its Necessary Conditions
II.7.17.2 · Wachsmuth pp. 130
Since the agent also uses certain things to complete the intended aim, these should not be regarded as parts of the activity, although each of the two ⟨arts⟩ mentioned requires its corresponding means, as something productive for the art rather than as a part.578 For it is not correct to call the things without which any action is impossible parts of the activity. A part is conceived as a constituent of the whole; things without which it cannot be done are conceived as productive, because they promote and help achieve the end.579
The Good and Happiness
II.7.18.1 · Wachsmuth pp. 130
The good is divided into the noble, the beneficial, and the pleasant. These are the aims of particular actions; what arises from all of them is happiness.580 Happiness is “the exercise of complete virtue, provided for in a complete life,” or “the activity of a complete life in accordance with virtue,” or “the unhindered exercise of virtue amid things in accordance with nature.” The same thing is also the end.581
Aim and End
II.7.18.2 · Wachsmuth pp. 130-131
If living happily is the end, while happiness is called the aim, and wealth is a good, while being wealthy … — for those who draw these distinctions for the sake of precision in names …582 Nevertheless, one should follow the usage of the ancients and say that the end is “that for whose sake we do everything, while it is for the sake of nothing else,” or “the ultimate object of desire,” or “living in accordance with virtue amid bodily and external goods, either all of them or most of them and the most important.”583
Goods Evils and Indifferents
II.7.18.3 · Wachsmuth pp. 131
This, being the greatest and most complete of goods, is served by all the others. For one must admittedly count the things that contribute to it among goods, and those that oppose ⟨it among evils; things that neither contribute nor oppose⟩ belong neither among goods nor among evils, but among indifferents.584 Yet not every noble action belongs to happiness.585
Complete and Incomplete Virtue
II.7.18.4 · Wachsmuth pp. 131
They called happiness the exercise of “complete” virtue because they said that some virtues are complete and others incomplete. Complete are justice and nobility and goodness; incomplete are natural aptitude and progress.586 What is complete fits what is complete. The end, therefore, is the activity of virtue of such a kind that no part of it is missing.587
A Complete Life and Its Duration
II.7.18.5 · Wachsmuth pp. 131-132
They also added “in a complete life” to indicate that happiness occurs in men who have already reached maturity. For a youth is incomplete, and so is his life; hence happiness could not occur in him, nor, in general, in an incomplete period, but in a complete one.588 This period is complete when it extends as long as God has set for us at most. He has set it within a range, just as he has set bodily size.589
Duration and Completeness
II.7.18.6 · Wachsmuth pp. 132
Accordingly, just as a single verse could not constitute a dramatic performance, nor a single extension of the hand a dance, nor a single swallow make spring, so a short period could not constitute happiness.590 For happiness must be complete, constituted from completeness in the man, the duration, and the fortune allotted to him.591