The birth of Stoicism
Founded in the early 3rd century BCE when the philosopher Zeno, originally from Cyprus, began lecturing at the Stoa Poikile, a public painted colonnade in Athens. The school took its name β "Stoicism" β from this lecture location.
The core concept: Logos
Stoicism held that the entire universe operates in an orderly way according to a rational principle called logos. Since human beings are themselves part of this universal reason, the Stoics taught that living in accordance with reason, in harmony with the natural order, is what constitutes a good life.
The dichotomy of control
A concept articulated by the former slave-turned-philosopher Epictetus, dividing everything in the world into "what is within my control" (my thoughts, judgments, actions) and "what is not within my control" (others' opinions, the weather, events that have already happened). Rather than expending energy on what cannot be controlled, focusing only on what can actually be changed is the central practice of Stoic philosophy.
The four cardinal virtues
Stoicism identifies wisdom (sound judgment), courage (right action in the face of fear), justice (fairness toward others), and temperance (mastery of one's desires) as the four cardinal virtues a person should cultivate, holding that living according to these virtues is itself happiness.
Apatheia β equanimity, not apathy
Apatheia refers to a calm state of mind undisturbed by negative emotions like fear, anger, or excessive desire. While it shares its root with the English word "apathy" (meaning indifference), in Stoic philosophy it does not mean suppressing emotion β it refers to a state of being unshaken by rational judgment.
Three defining Stoic philosophers
Roman-era Stoicism spread widely across social classes. Epictetus, once enslaved (author of the Enchiridion); Seneca, a Roman statesman and playwright (author of On the Shortness of Life); and Marcus Aurelius, a Roman emperor (author of Meditations) β are the three most representative Stoic philosophers.
Influence on modern psychotherapy
Albert Ellis, the 20th-century psychologist who developed cognitive behavioral therapy (CBT), said he drew major inspiration from Epictetus's idea that "people are disturbed not by events themselves, but by their view of those events." Even today, Stoicism's dichotomy of control is frequently applied in stress management and resilience training.