It is surely out of place to ask why a thing good in its own nature should be a good; we can hardly suppose it dissatisfied with its own goodness so that it must strain outside its essential quality to the good which it effectually is.
There remains the question with regard to the Simplex: where there is utter absence of distinction does this self-aptness constitute the good to that Simplex?
If thus far we have been right, the striving of the lower possesses itself of the good as of a thing resident in a certain Kind, and it is not the striving that constitutes the good but the good that calls out the striving: where the good is attained something is acquired and on this acquisition there follows pleasure. But the thing must be chosen even though no pleasure ensued; it must be desirable for its own sake.