The Potential Parts of Justice

The Potential Parts of Justice.—The potential parts of justice, that is, its annexed virtues, are those good habits that are subsidiary to justice, partaking in some degree, but not entirely, of its nature or activity. We saw above (1664 sqq.) that wise deliberation and wise decision belong to prudence, inasmuch as they are concerned with the government of conduct by reason, but that they fall short of its principal act, which is wise direction, and hence they are counted as potential parts. In like manner, there are a number of virtues which must be assigned to justice, since they regulate man’s will towards others, but which must be considered as its potential parts, because they do not share in one or the other of the two remaining essential notes of strict justice, namely, that a return is given which is equal to a debt, and that the debt is owed on account of a strict or legal right (see 1692).

In the following enumeration are given the chief potential parts of justice in which there is a strict debt, but not an equal repayment.

(a) Thus, to God man owes whatever honor and veneration he manifests, but with all his efforts man can never pay to God a worship that is equal to the debt. Thus, man cannot sufficiently thank God for His benefits: “What return can I make to the Lord for all that He has done for me?” (Psalm cxv. 12). The virtue of religion, therefore, is a potential part of justice.

(b) To parents children cannot make a full return for the benefits of life and upbringing, and the same may be said of one’s country: “A due return is out of the question in honors paid to the gods and to parents ... but a person is considered to be virtuous if he pays such regard as lies within his power” (Aristotle, Ethics, lib. VIII, cap. 16). Hence, the virtue of piety is also a potential part of justice. In exceptional cases, however, a child may make an equal or even a greater return to his parents for the benefits received from them; for example, by saving his father from death he makes an equal return for the benefit of life, and by converting his parents to the faith he gives them spiritual life, which is more valuable than the natural life he received from them.

(c) To men of virtue we are unable to make a sufficient return for the good they do us by their instruction and example, and hence the honor we show them is less than the benefit we receive from them. The virtue of reverence (observantia) is then a potential part of justice.

Degrees of Moral Debt.—The remaining potential parts of justice are those in which there is not a legal debt, which is enforced by some law, but a moral debt to which one is obliged from the decency or the greater decency of virtue. There are, then, two degrees of moral debt.

(a) A moral debt is more urgent, when without its fulfillment one cannot keep to the decency of virtue, that is, one cannot preserve the character of a virtuous man. Thus, if a moral debt is considered from the side of the debtor, he is obliged to show himself in words and deeds to others what he really is, has been, or intends to be (virtue of truthfulness); if the debt be viewed from the side of the creditor to whom some recompense is owed, there is the duty of gratitude to him for his benefits and of punishment for his injuries (virtues of gratitude and vindication). These parts of justice just mentioned are readily distinguishable from acts that pertain to general or particular justice and that are owed as legal debts. Thus, truthful testimony on the witness stand is a legal obligation, for the person who questions has a strict right to hear the truth; but veracity in social intercourse, or the habit of speaking the truth to others, is a moral obligation, one imposed by God but not enforced legally. Compensation for services bestowed according to contract is a legal duty, and the debtor can be compelled to pay; but thankfulness for gifts or other benefits is only a moral duty, and generally laws do not take account of ingratitude. Punishment of a delinquent by public authority is an act of commutative justice; but punishment meted out by a private person in self-defense, who appeals to the law or who forcibly but lawfully repels an injury, is an act of a virtue annexed to justice.

(b) A moral debt is less urgent, when without its fulfillment one can preserve virtue, but not the more becoming or more perfect course of virtue. The chief examples here are the virtues of friendship or affability and of liberality. To treat others in a friendly manner and to make oneself agreeable in company is suitable, not chiefly because of any benefits one has received from others, but because one is better for this oneself and by it the ways of life are made easier for all. Likewise liberality is not due, but it shows a better disposition as to money and other temporal goods to be willing to distribute them to others willingly and generously. Without friendship and liberality the peace and harmony of social intercourse may be maintained, but with them it is maintained more easily and receives an added grace and distinction.

Epieikeia.—The above-mentioned potential parts of justice are adjuncts of particular justice. There remains one more virtue to be noted, that of epieikeia or equity, which pertains to legal justice. This is a subjective part of justice, since it is the superior function of legal justice, guiding it to follow what is substantial right, and preserving it from the danger of mere legalism or over-strict interpretation or application of Written law (see 358). With this, the crowning virtue of justice, the enumeration of its parts is brought to a close.