flutes, and in general instruments) for the sake of something else,
clearly not all ends are final ends; but the chief good is evidently
something final. Therefore, if there is only one final end, this
will be what we are seeking, and if there are more than one, the
most final of these will be what we are seeking. Now we call that
which is in itself worthy of pursuit more final than that which is
worthy of pursuit for the sake of something else, and that which is
never desirable for the sake of something else more final than the
things that are desirable both in themselves and for the sake of
that other thing, and therefore we call final without qualification
that which is always desirable in itself and never for the sake of
something else.

  Now such a thing happiness, above all else, is held to be; for
this we choose always for self and never for the sake of something
else, but honour, pleasure, reason, and every virtue we choose
indeed for themselves (for if nothing resulted from them we should
still choose each of them), but we choose them also for the sake of
happiness, judging that by means of them we shall be happy. Happiness,
on the other hand, no one chooses for the sake of these, nor, in
general, for anything other than itself.

  From the point of view of self-sufficiency the same result seems
to follow; for the final good is thought to be self-sufficient. Now by
self-sufficient we do not mean that which is sufficient for a man by
himself, for one who lives a solitary life, but also for parents,
children, wife, and in general for his friends and fellow citizens,
since man is born for citizenship. But some limit must be set to this;
for if we extend our requirement to ancestors and descendants and
friends' friends we are in for an infinite series. Let us examine this
question, however, on another occasion; the self-sufficient we now
define as that which when isolated makes life desirable and lacking in
nothing; and such we think happiness to be; and further we think it
most desirable of all things, without being counted as one good
thing among others- if it were so counted it would clearly be made
more desirable by the addition of even the least of goods; for that
which is added becomes an excess of goods, and of goods the greater
is always more desirable. Happiness, then, is something final and
self-sufficient, and is the end of action.

  Presumably, however, to say that happiness is the chief good seems a
platitude, and a clearer account of what it is still desired. This
might perhaps be given, if we could first ascertain the function of
man. For just as for a flute-player, a sculptor, or an artist, and, in
general, for all things that have a function or activity, the good and
the 'well' is thought to reside in the function, so would it seem to
be for man, if he has a function. Have the carpenter, then, and the
tanner certain functions or activities, and has man none? Is he born
without a function? Or as eye, hand, foot, and in general each of
the parts evidently has a function, may one lay it down that man
similarly has a function apart from all these? What then can this
be? Life seems to be common even to plants, but we are seeking what is
peculiar to man. Let us exclude, therefore, the life of nutrition
and growth. Next there would be a life of perception, but it also
seems to be common even to the horse, the ox, and every animal.
There remains, then, an active life of the element that has a rational
principle; of this, one part has such a principle in the sense of
being obedient to one, the other in the sense of possessing one and
exercising thought. And, as 'life of the rational element' also has
two meanings, we must state that life in the sense of activity is what
we mean; for this seems to be the more proper sense of the term. Now
if the function of man is an activity of soul which follows or implies
a rational principle, and if we say 'so-and-so-and 'a good
so-and-so' have a function which is the same in kind, e.g. a lyre, and
a good lyre-player, and so without qualification in all cases,
eminence in respect of goodness being idded to the name of the
function (for the function of a lyre-player is to play the lyre, and
that of a good lyre-player is to do so well): if this is the case,
and we state the function of man to be a certain kind of life, and
this to be an activity or actions of the soul implying a rational
principle, and the function of a good man to be the good and noble
performance of these, and if any action is well performed when it is
performed in accordance with the appropriate excellence: if this is
the case, human good turns out to be activity of soul in accordance
with virtue, and if there are more than one virtue, in accordance with
the best and most complete.

  But we must add 'in a complete life.' For one swallow does not
make a summer, nor does one day; and so too one day, or a short
time, does not make a man blessed and happy.

  Let this serve as an outline of the good; for we must presumably
first sketch it roughly, and then later fill in the details. But it
would seem that any one is capable of carrying on and articulating
what has once been well outlined, and that time is a good discoverer
or partner in such a work; to which facts the advances of the arts are
due; for any one can add what is lacking. And we must also remember
what has been said before, and not look for precision in all things
alike, but in each class of things such precision as accords with
the subject-matter, and so much as is appropriate to the inquiry.
For a carpenter and a geometer investigate the right angle in
different ways; the former does so in so far as the right angle is
useful for his work, while the latter inquires what it is or what sort
of thing it is; for he is a spectator of the truth. We must act in the
same way, then, in all other matters as well, that our main task may
not be subordinated to minor questions. Nor must we demand the cause
in all matters alike; it is enough in some cases that the fact be well
established, as in the case of the first principles; the fact is the
primary thing or first principle. Now of first principles we see
some by induction, some by perception, some by a certain