The Cardinal Virtues
This week you are studying the Cardinal Virtues, the four qualities the Stoics considered the foundation of every good action: Wisdom (prudence), Courage (fortitude), Justice, and Temperance (self-control). The Latin word "cardinal" comes from "cardo," meaning hinge, the pin a door swings on. Everything else in a good life hangs on these four. The week's theme is Duty and Right Action, so you will see how these virtues are not abstract ideals but the very engine of doing the right thing, moment to moment, in ordinary life.
Passage
And, indeed, virtue in general may be said to consist almost wholly in three properties; the first is [Wisdom,] the ability to perceive what in any given instance is true and real, what its relations are, its consequences, and its causes; the second is [Temperance,] the ability to restrain the passions (which the Greeks call πάθη ) and make the impulses ( ὁρμαί ) obedient to reason; and the third is [Justice,] the skill to treat with consideration and wisdom those with whom we are associated, in order that we may through their cooperation have our natural wants supplied in full and overflowing measure, that we may ward of any impending trouble, avenge ourselves upon those who have attempted to injure us, and visit them with such retribution as justice and humanity will permit.
— Cicero, On Duties 2.18
Reflection
Cicero now gives you a working map of three of the four virtues. Wisdom is the ability to see things as they actually are, to trace causes and consequences clearly. Temperance is the ability to keep your passions (the Greek word is 'pathe,' meaning emotional surges that can overwhelm reason) from hijacking your decisions. Justice is the skill of treating others with care and intelligence so that real cooperation becomes possible. Today's passage is the first time this week that the four virtues are given specific jobs to do, moving from abstract names to concrete functions. Each one addresses a different place where human action can go wrong.
Go deeper
Which of the three functions described today, seeing clearly, managing your impulses, or treating others well, is the one you most often skip when you are under pressure, and what does skipping it cost you?
Practice
Three-Part Check-In
Think of a decision you need to make in the next few days. Spend seven minutes writing three short paragraphs: one on what you actually know about the situation (Wisdom), one on what you feel pulled toward doing by emotion or habit (Temperance check), and one on how your choice will affect others involved (Justice). You are not solving the problem yet; you are just running it through all three lenses.