/summa/SS/SSII/SS_Q50:
We must, in due sequence, consider the subjective parts of prudence. And since we have already spoken of the prudence with which a man rules himself (Q[47], seqq.), it remains for us to discuss the species of prudence whereby a multitude is governed. Under this head there are four points of inquiry:
(1) Whether a species of prudence is regnative?
(2) Whether political and (3) domestic economy are species of prudence?
(4) Whether military prudence is?