1686. False Prudence and Avarice.—The sins of false prudence are caused chiefly by avarice. (a) They are sins in which reason plays a great part, though it is not put to a good use; and hence they do not naturally spring from carnal vices or cowardice, which obscure reason. Avarice, on the contrary, reasons much on how it may get and keep; it is shrewd, cunning, deliberate, foresighted. (b) They are sins that have recourse to stealth and secrecy, and thus are unlike pride, vainglory, and anger, which incline to display and openness. But avarice puts utility above considerations of glory or revenge, and prefers to be without fame or to bear with slights rather than lose profits.
1687. Commandments of Prudence.—Prudence is not expressly commanded in the Decalogue, but there are precepts concerning this virtue in other parts of Scripture.
(a) Prudence is not enjoined in the Decalogue, because the ten commandments are concerned with those ends of virtue that are manifest to all, whereas prudence is about the means to practise virtue.
(b) Prudence is commanded in many places of Scripture: “Get wisdom and with all thy possession purchase prudence” (Prov., iv. 7); “Walk in the ways of prudence” (ibid, ix. 6); “Purchase prudence, for it is more precious than silver” (ibid, xvi. 16); “Be ye prudent as serpents” (Matt., x, 16); “Speak the things that become sound doctrine, that the aged men be sober, chaste, prudent” (Tit., ii. 1, 2); “Be prudent and Watch in prayers” (I Peter, iv. 7).
Art. 2: THE VIRTUE OF JUSTICE
(_Summa Theologica_, II-II, qq. 57-60.)
1688. After prudence follows justice. This virtue regulates human actions and renders to others their due, and so it has preeminence over fortitude and temperance, which govern the passions and make man virtuous as regards his own acts only and not as regards his neighbor. The logical order, then, is that justice should precede fortitude and temperance.
1689. Nature of Justice.—In God justice is an attribute in virtue of which He so treats His creatures that they can have no well-founded complaint against Him: “His own justice supported Him. He put on justice as a breastplate” (Is, lix. 16, 17). In man it is goodness towards God or towards neighbors; and it is called in Scripture by various names, such as “justice,” “equity,” “truth,” “righteousness.”
(a) In a wide sense, justice signifies the general virtue of holiness, or the collection of all the virtues, as when Our Lord says: “Blessed are they that hunger and thirst after justice (i.e., holiness)” (Matt., v. 6). Holiness, as a supernatural life communicated to the soul, is also called justice or justification: “The justice of God by faith of Jesus Christ, unto all and upon all them that believe in Him” (Rom., iii. 22).
(b) In a strict sense, it signifies the special moral virtue that consists in a firm purpose of the will to give to everyone his due or right: “Love justice, you that are judges of the earth” (Wis., i. 1); “If in every deed you speak justice” (Ps. lvii. 2). In its strict sense the word “justice” is hereafter used.