Book 1
1.
Every art and every investigation, and likewise every practical pursuit or undertaking,
seems to aim at some good: hence it has been well said that the Good is That at which all
things aim.
[
2]
(It is true that a certain variety
is to be observed among the ends at which the arts and sciences aim: in some cases the
activity of practising the art is itself the end,
1 whereas
in others the end is some product over and above the mere exercise of the art; and in the
arts whose ends are certain things beside the practice of the arts themselves, these
products are essentially superior in value to the activities.)
[
3]
But as there are numerous pursuits and arts and sciences, it follows
that their ends are correspondingly numerous: for instance, the end of the science of
medicine is health, that of the art of shipbuilding a vessel, that of strategy victory,
that of domestic economy wealth.
[
4]
Now in cases where
several such pursuits are subordinate to some single faculty—as bridle-making
and the other trades concerned with horses' harness are subordinate to horsemanship, and
this and every other military pursuit to the science of strategy, and similarly other arts
to different arts again—in all these cases, I say, the ends of the master arts
are things more to be desired than the ends of the arts subordinate to them; since the
latter ends are only pursued for the sake of the former.
[
6]
(And it makes no difference whether the ends of the pursuits are the activities
themselves or some other thing beside these, as in the case of the sciences
mentioned.)
2.
If therefore among the ends at which our actions aim there be one which we will for its
own sake, while we will the others only for the sake of this, and if we do not