Meaning, of course, all those which relate to Moral Action. [Greek: psronaesis ] is equivalent to [Greek: euboulia, ounesis, gnomae, and nous] (in the new sense here given to it). The faculty which guides us truly in all matters of Moral Action is [Greek: phronaesis], i.e. Reason directed by Goodness or Goodness informed by Reason. But just as every faculty of body and soul is not actually in operation at the same time, though the Man is acting, so proper names are given to the various Functions of Practical Wisdom. Is the [Greek: phronimos] forming plans to attain some particular End? he is then [Greek: euboulos]—is he passing under review the suggestions of others? he is [Greek: sunetos]—is he judging of the acts of others? he admits [Greek: gnomae] to temper the strictness of justness—is he applying general Rules to particular cases? he is exercising [Greek: nous praktikos] or [Greek: agsthaesis]—while in each and all he is [Greek: phronimos]?

See note, on p. 140.

There are cases where we must simply accept or reject without proof: either when Principles are propounded which are prior to all reasoning, or when particular facts are brought before us which are simply matters of [Greek: agsthaesis]. Aristotle here brings both these cases within the province of [Greek: nous], i.e. he calls by this name the Faculty which attains Truth in each.