What the Stoics Actually Said About Anxiety

Short answer: the Stoics had no concept of anxiety as a medical condition. What they wrote about was fear of things that haven't happened yet — and their central move was to separate the event from your judgement about it. That move is real, it's useful, and modern cognitive therapy openly credits it. It is also not a treatment, and this piece is honest about where the line falls.

The claim, stated plainly

Epictetus puts it in one sentence, in chapter five of the Enchiridion:

Men are disturbed not by the things which happen, but by the opinions about the things. — trans. Elizabeth Carter, 1758

Not the thing doesn't matter. Not cheer up. The claim is narrower and stranger: between an event and your distress there is a step, that step is an interpretation, and the interpretation is the part you have some purchase on.

Seneca makes the same point from the other end, in his thirteenth letter:

We suffer more often in imagination than in reality. — trans. Richard Mott Gummere, 1917

Both men are describing what a modern clinician would call anticipatory anxiety, roughly two thousand years before the term existed.

The bit that isn't a coincidence

This resemblance to cognitive behavioural therapy is not a happy accident that self-help writers invented. It's an acknowledged lineage.

Albert Ellis, who developed Rational Emotive Behaviour Therapy in the 1950s, repeatedly credited Epictetus as a direct influence and quoted that line from the Enchiridion in his own work. Aaron Beck, the founder of cognitive therapy, wrote that its philosophical origins could be traced back to the Stoics.

So when someone tells you Stoicism is ancient CBT, they're overstating it — but not by as much as you'd think. The shared move is the same: catch the interpretation, examine it, notice it isn't the event.

Four techniques, and what each is for

1. The dichotomy of control. Sort the thing you're anxious about into what you can affect and what you can't. Then spend your effort only on the first pile. Most anxious rumination is effort poured into the second pile, which is why it produces exhaustion without resolution.

2. Stripping the event. Marcus does this constantly — reduce what happened to what actually happened, with the narrative removed. Someone sent an email. A number changed. A person left a room. Then look at what you added.

3. Premeditatio malorum. Deliberately imagining the thing going wrong, in detail, in advance. This sounds like the worst possible advice for an anxious person and sometimes is — see below. The Stoic version is specific: you imagine the loss in order to notice that you would survive it, not to rehearse the dread.

4. The view from above. Zooming out until the crisis is proportionate — the city, the century, the people who will forget all of this. Marcus was the most powerful man alive and aimed this squarely at himself.

Where this stops working

This is the section most articles about Stoicism and anxiety leave out, and it's the most important one.

Stoicism is a philosophy, not a treatment. It has no account of panic disorder, generalised anxiety disorder, PTSD or OCD, because those categories didn't exist. The techniques above are ways of thinking about ordinary worry. They are not a clinical intervention and they are not evidence-based medicine.

"It's just your judgement" can become a stick. Told to someone whose anxiety is physiological and persistent, the message lands as this is your fault and you should be able to think your way out. That's not what Epictetus meant, and it makes people worse.

Premeditatio malorum is genuinely risky for some people. If you already rehearse catastrophes involuntarily, a technique that instructs you to rehearse them deliberately is not obviously the right tool. Approach it with care, or skip it.

Suppression is not acceptance. The popular version of Stoicism — feel nothing, be unbothered — is a misreading, and it's the kind of misreading that teaches people to sit on things until they surface elsewhere. The Stoics wanted you to examine your reactions, not to pretend you don't have any.

If anxiety is interfering with your daily life — sleep, work, relationships, eating — that's a reason to speak to a doctor, not to read more philosophy. The two aren't in competition. Plenty of people find Stoicism a useful companion to treatment. It is a poor substitute for it.

What to actually read

Start with the Enchiridion — the whole framework in forty pages. Seneca's letters are gentler company if Epictetus's bluntness grates, and Letter 13 is specifically about fearing things that haven't happened. Meditations is best read last, once you know what Marcus is drilling.

There's a fuller reading order here.