The Dichotomy of Control

The Quote

"Some things are within our power, while others are not. Within our power are opinion, motivation, desire, aversion, and, in a word, whatever is of our own doing; not within our power are our body, our property, reputation, office, and, in a word, whatever is not of our own doing."

— Epictetus, Enchiridion, Section 1

Original language: Greek

Historical Context

This passage is the opening sentence of the Enchiridion (the Handbook), a short manual of Stoic ethics compiled by Epictetus's student Arrian in the early second century CE. Epictetus himself wrote nothing; his teachings survive through Arrian's notes, which comprise the Discourses (four surviving books of an original eight) and the Enchiridion, a condensed distillation of the most essential practical doctrines. The Enchiridion was designed as a portable guide — a text a student could carry and consult daily — and its opening sentence was deliberately chosen to set the entire philosophical programme in a single stroke.

Epictetus taught in Nicopolis, in northwestern Greece, having spent his earlier life in Rome and, before that, as a slave in the household of Nero's freedman Epaphroditus. His experience of slavery — of having his body and circumstances entirely under another's control — informs the sharpness of the distinction he draws. He knew, from lived experience, that the things "not within our power" can be taken away at any moment and by any hand; and he knew, equally, that the things "within our power" cannot be taken away even by a master. The opening of the Enchiridion is thus not an abstract axiom but a hard-won insight, tested against the most extreme deprivation of external freedom.

The Enchiridion became one of the most widely read and influential texts of later antiquity and, through repeated rediscovery, of the modern world. Its opening distinction is often regarded as the single most concentrated statement of the Stoic ethical orientation — the hinge on which the entire practical philosophy turns.

Meaning

The passage draws a strict dichotomy. On one side are the things "within our power" (eph' hemin): opinion, motivation, desire, aversion — in sum, everything that is "of our own doing." These are the activities of the rational faculty, the inner life of judgment and choice. On the other side are the things "not within our power" (ouk eph' hemin): body, property, reputation, office — in sum, everything that is "not of our own doing." These are the externals, the conditions and circumstances that depend on other people, on chance, and on the order of nature.

The point of the dichotomy is not merely descriptive but therapeutic and normative. Epictetus immediately draws the practical consequence (in the lines that follow this opening): if you treat what is not within your power as if it were, you will be frustrated, anxious, and disturbed; if you treat what is within your power as if it were not, you will be negligent of the one thing that is truly yours. Happiness and freedom depend on aligning one's desires and aversions with the actual structure of agency — wanting only what is within one's power, and treating everything else as indifferent.

The phrase "whatever is of our own doing" is the key to the distinction's depth. Epictetus is not saying that we have no influence over externals — we can act on them, try to shape them, and sometimes succeed. He is saying that the outcome is never fully "of our own doing," because it always depends on factors beyond our control. What is fully and unconditionally our own is the inner act — the judgment we form, the desire we endorse, the choice we make. This inner domain cannot be coerced, because even under threat the mind retains the power to judge the situation and decide how to respond.

Philosophical Interpretation

The technical foundation of the dichotomy is the Stoic concept of prohairesis — moral choice or volitional capacity. Prohairesis is the faculty by which we form intentions, give or withhold assent to impressions, and direct our desires and aversions. For Epictetus, prohairesis is the sole sphere of genuine agency and the sole locus of moral value. Everything that falls within prohairesis — our opinions, motivations, desires, and aversions — is "up to us" in the strongest sense: it is ours to command, and no external force can compel it without our own assent. Everything outside prohairesis is, in Stoic terminology, an "external" or "indifferent" (adiaphoron). The term "indifferent" does not mean that these things do not matter at all; it means that they are not good or bad in themselves, and therefore are not the proper objects of desire or aversion for the wise person. Health, wealth, and reputation have a certain "selective value" (the Stoics called them "preferred indifferents"), but they do not constitute the good, and their absence does not constitute evil. Only virtue — the excellent use of prohairesis — is genuinely good, and only vice is genuinely bad.

The suffering that afflicts human life, on Epictetus's diagnosis, arises from confounding the two categories. When we desire what is not within our power — success, approval, the preservation of our body or property — we place our happiness in the hands of fortune and other people, and we guarantee that we will be distressed whenever these things are withheld or taken. Equally, when we treat what is within our power — our own judgments and choices — as if it did not matter, we neglect the one faculty whose exercise is unconditionally in our control and whose excellence is unconditionally good. The dichotomy is thus both a map of reality and a prescription: know the boundary, and confine your desires to the inner side of it.

The practical implications for daily life are far-reaching. Epictetus instructs his students to apply the dichotomy to every situation: before entering a difficult encounter, remind yourself that the outcome is not within your power but that your own conduct is; before pursuing a goal, distinguish the external result (not within your power) from the effort and integrity you bring to it (within your power). This produces a characteristic Stoic serenity: one acts vigorously in the world, but one's peace of mind does not depend on the world's response. The Stoic is not passive — Epictetus urged active participation in public life and the fulfillment of one's roles — but the Stoic's inner freedom is insulated from the vicissitudes of fortune, because it rests only on what is securely one's own.

The influence of this distinction on modern cognitive-behavioral therapy (CBT) is direct and well-documented. Albert Ellis, the founder of Rational Emotive Behavior Therapy (REBT), explicitly credited Epictetus as a primary philosophical source; the core REBT insight — that emotional disturbance is caused not by events but by the irrational beliefs and evaluations we attach to them — is a direct descendant of the dichotomy of control. Aaron Beck, the founder of cognitive therapy, similarly built on the recognition that much psychological suffering consists in attempts to control the uncontrollable, and that therapy consists in redirecting effort toward the sphere of thought and judgment where genuine agency resides. The opening of the Enchiridion thus reaches from a second-century classroom in Nicopolis into the consulting rooms of contemporary psychotherapy, testifying to the durability of its central insight.

Related Concepts

• Freedom: For Epictetus, freedom is not the absence of external constraint but the unconditioned sovereignty of the inner faculty — the power to judge and choose that cannot be taken away even by a master or a tyrant.
• Discipline: The dichotomy of control is not a one-time recognition but an ongoing discipline — the daily practice of confining desire to what is within one's power and treating everything else with detachment.

Related Learning

• Explore the Stoicism philosophy page for the broader Stoic framework of virtue, externals, and the three disciplines of desire, action, and assent.
• Visit the Marcus Aurelius thinker page for a Roman emperor's application of Epictetus's dichotomy to the pressures of power and mortality.
• Read the Epictetus thinker page for the life and teachings of the philosopher whose distinction between what is and is not within our power became the cornerstone of practical Stoicism.

Sources

1. Epictetus. Enchiridion. Translated by Robin Hard. Oxford: Oxford World's Classics, 2014. Section 1.
2. "Epictetus." Stanford Encyclopedia of Philosophy. https://plato.stanford.edu/entries/epictetus/