Prudence: Mother of All Virtues

Prudence, the “mother” of all of the virtues, is the virtue by which a person recognizes his moral duty and the good means to accomplish it.

I keep hearing about the importance of virtue and being virtuous, but no one explains what virtue is. Why dont you do a column about this?

St. Paul, in his Letter to the Philippians, captured the idea of virtue and the living of a virtuous life: “My brothers, your thoughts should be wholly directed to all that is true, all that deserves respect, all that is honest, pure, admirable, decent, virtuous or worthy of praise” (4:8). With this in mind, the classic definition of virtue is a habit or firm disposition that inclines a person to do good and to avoid evil. Characterized by stability, a virtuous person not only strives to be a good person, but also seeks what is good and chooses to act in a good way. Aristotle defined virtue as “that which makes both a person and what he does good.”

Dr. Joseph Pieper, one of the great Thomist theologians and an expert on virtue, provided this explanation: “The doctrine of virtue … has things to say about this person; it speaks both of the kind of being which is his when he enters the world, as a consequence of his createdness and the kind of being he ought to strive toward and attain to by being prudent, just, temperate and brave. The doctrine of virtue is one form of the doctrine of obligation, but one by nature free of regimentation and restriction” (The Four Cardinal Virtues).

On one hand, an individual can acquire human virtues through his own effort under the guidance of reason. Through education, by deliberately choosing to do what is good, and through perseverence, a person acquires and strengthens virtue.

On the other hand, with the help of divine grace from God, the individual finds greater strength and facility to practice these virtues. Through these grace-assisted virtues, which we would now call moral virtues, he gains self-mastery of his weakened nature due to original sin. In sum, these virtues help to forge that Christian character and to motivate a person to become God-like, in the best sense of the term.

There are four primary moral virtues, which are called the cardinal virtues: prudence, justice, fortitude and temperance. The word cardinal derives from the Latin cardo, meaning “hinge.” Consequently, these four virtues are called “cardinal” because all other virtues are categorized under them and hinge upon them. The Book of Wisdom of the Old Testament states, “For [wisdom] teaches temperance and prudence, justice and fortitude, and nothing in life is more useful for men than these” (8:7).



Prudence, the “mother” of all of the virtues, is the virtue by which a person recognizes his moral duty and the good means to accomplish it. Actually, prudence is part of the definition of goodness. A person can be prudent and good only simultaneously. No other virtue can contradict what is prudent. Therefore, what is prudent is substantially what is good, and prudence is the measure of justice, temperance and fortitude.

A prudent person looks at the concrete reality of a situation with a clear, honest objectivity; references and applies the moral truths (e.g the Ten Commandments or the teachings of the Church); makes a moral judgment; and then commands an action. Moreover, prudence also seeks to accomplish the action in a good way doing what is good in a good way.

Clearly, prudence is essential for the formation and operation of ones conscience. To be a prudent person, one must know Gods truth, just as to have a good conscience, one must know Gods truth. One cannot do what is good if one does not know the principles of truth and goodness.

To prudently examine a situation and then to determine a course of action, one must keep in mind three aspects of prudence: memoriadocilitas and solertiaMemoria simply means having a “true-to-being” memory which contains real things and events as they really are now and were in the past. Everyone must learn from his past experiences. Remembering what is to be done or avoided from past experiences helps to alert us to the occasions and causes of sin, to prevent us from making the same mistakes twice and to inspire us to do what is good. Be on guard: the falsification or denial of recollection is a grave impediment to exercising prudence.

Docilitas means that a person must have docility, an open-mindedness, which makes the person receptive to the advice and counsel of other people. A person should always seek and heed the wise counsel of those who are older, more experienced and more knowledgeable.

Finally, the exercise of prudence involves solertia, which is sagacity. Here a person has a clear vision of the situation at hand, foresees the goal and consequences of an action, considers the special circumstances involved and overcomes the temptation of injustice, cowardice, or intemperance. With solertia, a person acts in a timely manner but with due reflection and consideration to decide what is good and how to do the good. With a well-formed conscience attuned to Gods truth, and with the proper exercise of memoria, docilitas and solertia, a person will act prudently.

Contrary vices to prudence include precipitance (acting impulsively), inconstancy (changing resolutions too quickly), negligence and losing sight of ones supernatural destiny, namely eternal life. Perhaps the last vice is most prevalent today: too many people act without regard to their eternal judgment and without setting their sights on Heaven. The prudent person seeks to always do what is good in the eyes of God so as one day to be joined to His everlasting goodness in Heaven. After all, Jesus asked, “What profit would a man show if he were to gain the whole world and destroy himself in the process?” (Mt 16:26).

Given this introduction to the cardinal virtues and to the virtue of prudence, next week we will continue the discussion on the virtues of justice, fortitude and temperance.

By Father William Saunders


This article is borrowed from

Saunders, Rev. William. “Prudence: Mother of All Virtues.” Arlington Catholic Herald.

The Author

Father William Saunders is pastor of Our Lady of Hope parish in Potomac Falls, Virginia. He is dean of the Notre Dame Graduate School of Christendom College. The above article is a “Straight Answers” column he wrote for the Arlington Catholic Herald. Father Saunders is the author of Straight Answers, a book based on 100 of his columns, and Straight Answers II.

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