1640. Social prudence in turn is subdivided in accordance with the two classes of society, the perfect and the imperfect, into political and domestic prudence. (a) Political prudence is the right administration of the affairs of a larger multitude, such as the State. (b) Domestic prudence is the right administration of the affairs of the family.

1641. Political prudence, according to usage, often has or may bear an unfavorable and evil signification. Hence, as we are considering now the virtue of prudence, we should remark that political prudence here is something very different from political methods or practices that are wise in evil, but not in good, though often called prudent (see 1651, 1674 sqq.). Examples: (a) Evil forms of government, such as tyranny, oligarchy, or mob rule, cannot be said to have the virtue of political prudence, no matter how successful they may seem, for they do not rule in the interests of the people at large, and this interest is the very beginning and end of true social prudence. (b) Evil practices in the regulation of government or of political parties—such as employment of foul means to maintain the interests of the State, corruption, bribery, intimidation, used for the purpose of winning the election of a ticket or candidate—cannot be honored with the name of prudence, but should rather be called Machiavellism and dishonest politics.

1642. Prudence exercised for the benefit of the nation as a whole should be found, not only in rulers, but also in private citizens. We may distinguish, then, the following kinds of prudence:

(a) in those who conduct the affairs of the nation there should be governmental prudence or statesmanship. Of rulers prudence in the highest degree is expected; for the chief function of prudence is to direct actions, and the heads of States must direct not only their own actions but those of great bodies of men. Scripture speaks of prudence and justice as the two virtues that are especially needed in a prince (Jer., xxiii. 5);

(b) in those who direct the defense of the nation against its enemies there should be military prudence, for bravery has to be guided by wisdom: “A wise man is strong, and a knowing man, stout and valiant, because war is managed by due ordering, and there shall be safety where there are many counsels” (Prov., xxiv. 5, 6);

(c) in subjects there should also be political prudence, for, as they are rational beings and members of society, they should willingly rule their acts according to the law and should fulfill their own particular offices with a view, not only to their own individual good, but to the good of the whole community.

1643. Utility of Prudence for Society.—Hence, we see that none of the virtues is selfish or concerned exclusively with the good of individuals. (a) Thus, prudence, as just said, is political and domestic as well as individual; (b) justice is legal (i.e., towards society) as well as commutative (i.e., towards individuals); (c) even temperance (e.g., avoidance of drunkenness) and courage (e.g., defense of public safety) pertain to the common good and are commanded in laws of the State.

1644. Prudence attends chiefly to good morals, but it attends also to other goods that benefit human life.

(a) Thus, personal prudence directs one, not only to seek after virtue, but also to seek after lawful conveniences and to shun such things as are embarrassing or undesirable. Hence, the prudent man acts so as to avoid offense and to gain the good will of others; he studies the dispositions of those with whom he lives, so as to live peaceably, etc.; he protects himself against the attacks and snares of the unfriendly (cfr. Acts, xxiii. 6; Matt., xxii. 17).

(b) Domestic prudence provides not only for the virtuous lives of the members of the household, but also for their health and happiness, food and clothing, and other necessities and lawful pleasures (Luke, xii. 42).