Chapter 2: The Road Map of the Journey (continued)
Stoicism didn’t come out of nowhere, of course. The early Stoics were heavily influenced by previous philosophical schools and thinkers, in particular by Socrates and by the Cynics, but also by the Academics (followers of Plato) (see the appendix for more on these different schools of thought). They spent a significant amount of time engaging rivals in lively debate, especially the Academics, the Peripatetics (followers of Aristotle), and of course the Epicureans. Epictetus, for instance, devotes three entire chapters of the Discourses to rebutting Epicurus. Each of these schools was “eudaimonic” that is, their objective was to figure out the best way of living a human life. Some emphasized virtue (the Peripatetics, the Cynics, and the Stoics), and others pleasure (the Epicureans, the Cyrenaics) while still others were more interested in metaphysics (the Academics) or in the limits of human knowledge (the Skeptics).
All, however, aimed at the same goal: a flourishing existence. This went on for a while, until in 155 BCE something very important happened to ancient philosophy: the heads of the Stoa (Diogenes of Babylon), the Academy, and the Peripatetic school were chosen as ambassadors to represent Athens in political negotiations with Rome. The philosophers went to the capital of the Republic to plead for the reduction of a fine that had been imposed three years earlier on Athens for the sack of Oropus, a small Greek city under Roman protection. The Athenians’ visit had a great cultural impact, far beyond its diplomatic import: the philosophers gave packed lectures in the capital, shocking the rather conservative Roman establishment and igniting an interest in philosophy among the Romans for the first time. Then, during the years 88–86 BCE, two philosophers, the Peripatetic Athenion and the Epicurean Aristion, briefly in turn gained absolute power in Athens. (Imagine that: a philosopher turned dictator!) However, they made the strategically fatal mistake of siding with King Mithridates against the Romans, an alliance that eventually led to the sack of Athens.
The episode spelled the end of that venerable city as the philosophical capital of the ancient world, as major exponents of all schools moved to quieter places, including Rhodes, Alexandria, and especially Rome itself. It was a pivotal moment in the history of Western philosophy. This transitional, second period of Stoic history is referred to as the “middle
Stoa.” The great Roman orator Cicero, who was sympathetic to Stoic ideas, is one of our major sources for both the early and the middle Stoa. Eventually, the Roman Republic after the death of Julius Caesar and the ascent to power of Octavian Augustus gave way to the Empire. Stoicism thrived as a major school during this time, known as the “late Stoa.” Active then were all the famous Stoics whose writings have been preserved in sizable quantities: Gaius Musonius Rufus (Epictetus’s teacher), Seneca (the adviser to the emperor Nero), Epictetus himself, and the emperor-philosopher Marcus Aurelius. By the time Emperor Constantine legalized Christianity in 312 CE, Stoicism was in decline, as were a number of other schools of thought. Eventually, the Byzantine emperor Justinian closed the Academy in 529 CE, thus ending the ancient Greco-Roman philosophical tradition altogether.
The idea of Stoicism, however, survived in the writings of the many historical figures who were influenced by it (including those who were sometimes critical of it), among them some of the Early Church Fathers, Augustine, Boethius, Thomas Aquinas, Giordano Bruno, Thomas More, Erasmus, Montaigne, Francis Bacon, Descartes, Montesquieu, and Spinoza. Modern Existentialism and even neo-orthodox Protestant theology have also been influenced by Stoicism. In the twentieth century, Stoicism saw a resurgence after the Second World War, when, as we have seen, it inspired Viktor Frankl’s logotherapy, Albert Ellis’s rational emotive behavior therapy, and the broad family of cognitive behavioral therapies.