Art deals for the most part with the same matters as are subject to the intervention of Fortune or Chance (IV.).
Prudence or Judiciousness [Greek: phronaesis], the quality of [Greek: ho phronimos], the Practical Reason, comes next.

We are told what are the matters wherewith it is, and wherewith it is not, conversant.

It does not deal with matters wherein there exist art, or with rules of art.

It does not deal with necessary matters, nor with matters not modifiable by human agency.

The prudent or judicious man is one who (like Pericles) can accurately estimate and foresee matters (apart from Science and Art) such as are good or evil for himself and other human beings.