To answer this query, Aristotle analyzes the process of Deliberation, as to its scope, and its mode of operation. We exclude from deliberation things Eternal, like the Kosmos, or the incommensurability of the side and the diagonal of a square; also things mutable, that are regulated by necessity, by nature, or by chance; things out of our power; also final ends of action, for we deliberate only about the _means_ to ends. The deliberative process is compared to the investigation of a geometrical problem. We assume the end, and enquire by what means it can be produced; then again, what will produce the means, until we at last reach something that we ourselves can command. If, after such deliberation, we see our way to execution, we form a Purpose, or Deliberate Preference [Greek: proairesis]. Purpose is then definable as a deliberative appetency of things in our power (III.). Next is started the important question as to the choice of the final _End_. Deliberation and Purpose respect means; our Wish respects the End--but what is the End that we wish? Two opinions are noticed; according to one (Plato) we are moved to the good; according to the other, to the apparent good. Both opinions are unsatisfactory; the one would make out an incorrect choice to be no choice at all; the other would take away all constancy from ends. Aristotle settles the point by distinguishing, in this case as in others, between what bears a given character simply and absolutely, and what bears the same character relatively to this or that individual. The object of Wish, simply, truly, and absolutely, is the Good; while the object of Wish, to any given individual, is what appears Good to him. But by the Absolute here, Aristotle explains that he means what appears good to the _virtuous_ and _intelligent_ man; who is is declared, here as elsewhere, to be the infallible standard; while most men, misled by pleasure, choose what is not truly good. In like manner, Aristotle affirms, that those substances are truly and absolutely wholesome, which are wholesome to the healthy and well-constituted man; other substances may be wholesome to the sick or degenerate. Aristotle's Absolute is thus a Relative with its correlate chosen or imagined by himself.