There are then two sorts of prudence: personal prudence, which is nothing more than self-interest well understood, and civil or disinterested prudence, which applies to the interests of others; thus, a prudent general, a prudent notary, a prudent minister, are not only prudent in their own interests, but for that of others. Prudence from this point of view is then but a duty toward others. As to personal prudence, it may be asked how far it is a question of morals, and whether it is not excluded from them by the very principle of morals, which is duty. But we have already solved that difficulty. Because prudence is not all virtue, it does not follow that it is not a virtue. Certainly, we are too naturally inclined to seek our own interest, to make it necessary to set it down as a duty. But in case of struggle between self-interest and passion,[118] self-interest takes sometimes the character of duty. This is clear enough. Interest, if properly understood, represents general interest; and passion, private interest. To yield to passion, is to satisfy at a given moment, and for a very short time, one of our desires only. Prudence, on the contrary, pleads the cause of the general interest of the entire man, and for all his life. Man may be represented (as Plato has represented him) figuratively as a city, a republic, a world; it has been said that he is a microcosm (little world). This little world represents in miniature the harmony of the great world. The individual to whom the government of this little world is intrusted, and who stands in regard to himself as Providence stands in regard to the universe, should not favor a part of it at the expense of the rest. Prudence is then the virtue by means of which man governs the affairs of the little State of which he is the king. Prudence, moreover, is nothing more than foresight—that is to say, the faculty of foreseeing what is coming, of drawing from the past, consequences for the future, and acting conformably to the lessons of experience. Now, it is especially by this that man is distinguished from the animal: it is by this that he is capable of progress. He owes it then to himself to act according to the principles of reason, and not according to brute instincts.
Another difficulty of greater import, is that prudence does not represent a special virtue, but is nothing more than a common name given to several particular virtues. Thus, prudence being defined “the discernment between the useful and the hurtful,” it may be said that discernment, in point of sensual pleasures, will be called moderation or temperance; in point of riches, economy; that true courage holding the mean between temerity and cowardice, is necessarily accompanied by prudence; we have seen that science itself must learn how to keep within bounds, and this also is a sort of prudence. We shall find therefore that prudence has not, like other virtues, a property of its own. It is in reality nothing more than a mode common to all personal virtues, each presenting two standpoints to be considered from: 1, from the standpoint of personal dignity, which is the highest principle; 2, from the standpoint of a proper self-interest, which, subordinate to the first, is a secondary and relative standpoint.
However, applied in individual cases, we will give here a few of the rules concerning prudence in general:
1. It is not enough to attend to what good or evil the present moment may present; we should also examine what the natural consequences of this good or evil will be, so that, comparing the present with the future and balancing the one with the other, we may see the result beforehand.
2. It is unreasonable to seek a good which will inevitably be followed by a greater evil.
3. Nothing is more reasonable than to suffer an evil which is certain to be followed by a greater good.
4. One should prefer a greater good to a lesser, and conversely so in the case of evils.
5. It is not necessary to be fully certain in regard to great goods or evils, and probability is sufficient to induce a reasonable person to deprive himself of some lesser goods, or to suffer some slight evils, in view of acquiring much greater goods, or avoiding worse evils.[119]
154. Duties relative to telling the truth.—Veracity and falsehood.—It is in the nature of man to express his thoughts by signs of various kinds, and oftenest by words. What is the law which is to regulate the relations between words and thoughts? Are we to regard words as arbitrary means serving indifferently to express any kind of thought, or as having no other end than to express our own particular thought, the same, namely, which comes to us at the moment of speaking? Common sense solves this question by esteeming in the highest degree those who use speech only to express their thought, and despising those who use it to deceive. This sort of virtue is called veracity, and its opposite is falsehood.
Falsehood is generally regarded among men as only a violation of the duty toward others. It is not from this standpoint we are going to consider it here. Unquestionably, one should injure no one in any way, no more by a falsehood than otherwise. But for a falsehood to be harmless, does it follow that it is not bad? The scholastics distinguished two kinds of falsehoods: the malicious falsehood, with intent to deceive, and the verbal falsehood, which consists in mere words, and does not spring from any wish to do harm (as, for example, the falsehood of the physician who deceives his patient). But such distinctions should not be admitted. Falsehood need not be malicious to be bad: it is bad of itself, whatever be its consequences. There remains then to know what is to be done in cases of conflict between our duties, and if moral law does not in certain cases relent? Even though it did, it would not suffice to authorize the distinction between two kinds of falsehoods. What precisely constitutes a falsehood is to be verbal—that is to say, to employ speech to express the contrary of truth. Whether malice enters into it or not, this is an accident which has nothing to do with the essence of falsehood; it may aggravate or attenuate it, certainly, but it does not constitute it.