> For the complete documentation index, see [llms.txt](https://wiki.stoicfellowship.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://wiki.stoicfellowship.com/wiki/exercises/agency-desire-and-acceptance/fundamental-rule.md). # Fundamental Rule Distinguish what is up to us from what is not > **Also known as:** Fundamental Divide; Dichotomy of Control; Control Test; Stoic Fork; Circle of Control > **Practice basis:** Ancient instruction Divide the situation into two parts: what is up to you and what is not. Then put your effort into the judgment and action that belong to you. ## At a Glance * **Use when:** You are distressed about an outcome, another person's conduct, reputation, loss, or uncertainty. * **Trains:** Moral responsibility, sound evaluation, and appropriate action. * **Time:** One to five minutes. * **Timing:** Before, during, or after an event. ## Purpose Epictetus begins the *Enchiridion* with a rule: some things are up to us; others are not. Our judgments, impulses, desires, and aversions are up to us. Our bodies, possessions, reputations, offices, other people, and outcomes are not up to us in the same way. The phrase *up to us* does not mean *within our influence*. You may influence whether you get a job, win a case, or change someone's mind, but you cannot make the outcome yours alone. The exercise asks a stricter question: Where does your moral responsibility lie? Use the answer to stop treating the result as the good or evil and return your attention to what you will judge and do. **Core Stoic Skill:** Separating moral responsibility from externals and identifying the choice that belongs to us. ## How to Practice ### Short Form Ask: 1. What in this situation is up to me? 2. What is not up to me? 3. What judgment or action is mine to govern now? ### Full Practice 1. **State the situation.** Describe what happened or may happen before calling it good, bad, unfair, or unbearable. 2. **Name the external elements.** Include outcomes, other people's choices, reputation, possessions, bodily conditions, and past events. 3. **Name what is up to you.** Examine your judgment, assent, desire, aversion, intention, and impulse to act. 4. **Correct the value judgment.** Ask whether you have treated an external as a moral good or evil. 5. **Choose the appropriate action.** Decide what wisdom, justice, courage, or moderation requires from you. 6. **Release the demand for a guaranteed result.** Act well without pretending that the outcome is yours to command. ## Example: Waiting on a Job Decision You are waiting to learn whether you received a job. * **Not up to you:** The employer's decision, the other candidates, the timing, and the final outcome. * **Up to you:** How honestly you presented yourself, whether you follow up appropriately, the judgment you make about the result, and what you choose next. * **Correction:** Getting the job is preferred, but it does not determine whether you acted well. * **Action:** Send an appropriate follow-up, continue other work, and meet the result without surrendering your judgment to it or hanging your happiness on it. ## Common Mistakes * Treating “up to us” as “anything I can influence.” Influence does not make an outcome up to you. * Concluding that externals do not matter at all. Stoics can prefer an outcome and work responsibly toward it without calling it good in the moral sense. * Using the distinction to avoid duty. Another person's response is not up to you, but your responsibility toward that person may still be yours. * Trying to control thoughts or first impressions that arise involuntarily. The work concerns the assent, desire, and action that follow. ## In-the-Moment Phrases * “What is genuinely mine here?” * “Remember the Fundamental Rule.” ## Optional Reflection Use these questions for journaling or quiet contemplation. Writing is optional; the questions support the exercise but do not replace its practice. * Which external outcome, opinion, event, or condition was I treating as though it were up to me? * What judgment, intention, desire, or action actually belonged to my moral responsibility? * Did I use the distinction to guide appropriate action, or to withdraw from a duty that remained mine? * What demand for control can I release while continuing to do what the situation requires? ## Source Anchors * Epictetus, *Enchiridion* 1 * Epictetus, *Discourses* 1.1 and 1.22 ## Related Exercises * [Examine Your Impressions](/wiki/exercises/attention-impressions-and-assent/examine-your-impressions.md) * [Reserve Clause](/wiki/exercises/agency-desire-and-acceptance/reserve-clause.md) * [The Stoic Archer](/wiki/exercises/choice-action-and-virtue/stoic-archer.md) ## Modern Parallels Circles of control, influence, and concern look similar, but they usually sort things by how much influence you have. The Fundamental Rule asks what is *up to you*. That stricter distinction identifies where your moral responsibility lies and where the Stoics locate good and evil. **Circle of Control** is widely used as a modern presentation of this Stoic distinction. It is a useful search term, provided the circle is not expanded to include everything you can merely influence. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation by asking a question. Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters: ``` GET https://wiki.stoicfellowship.com/wiki/exercises/agency-desire-and-acceptance/fundamental-rule.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.