What are the 4 true virtues?

The Four True Virtues: A Timeless Guide to Living Well

Long before modern psychology and self-help trends, ancient philosophers laid the foundation for ethical living through what are known as the four cardinal virtues. These enduring qualities—prudence, temperance, courage, and justice—have shaped moral thought across cultures and centuries.

The idea wasn’t exclusive to Greek thinkers like Plato and Aristotle. The Hellenistic Jewish philosopher Philo of Alexandria saw these same virtues woven into the teachings of Moses, interpreting them as divine guidance for a balanced, righteous life. “In these words Moses intends to sketch out the particular virtues,” he wrote. “And they also are four in number: prudence, temperance, courage, and justice.”

Prudence—often called wisdom or practical judgment—is the ability to discern the right course of action in any situation. It's the virtue that guides the others, helping us navigate complex choices with clarity. Temperance speaks to self-control, the moderation that keeps desires in check and fosters inner harmony.

Courage, more than mere bravery in battle, is the moral strength to act rightly even in the face of fear, uncertainty, or opposition. And justice—the cornerstone of ethical society—is about fairness, giving others their due, and upholding what is right, not just convenient.

What makes these virtues “cardinal” is that they are hinge-like (from the Latin cardo)—they form the pivot upon which a good life turns. They’re not abstract ideals, but practical tools, accessible to anyone striving for integrity.

Philo’s blending of Greek philosophy and Jewish thought shows how deeply these virtues resonate across traditions. They’re not relics of the past, but living principles—quietly shaping how we think, decide, and treat one another. In a world often driven by impulse and excess, returning to these four true virtues might be exactly what we need.