It’s 3 a.m., and you’re wide awake. Tomorrow you have a meeting with your boss, and your mind is already running through every way it could go wrong. By the time morning comes, you’ve lived through the disaster a dozen times.
Then the meeting happens, and it’s fine. Maybe even good. You spent hours suffering over something that never arrived. Nearly 2,000 years ago, the Roman philosopher Seneca described exactly this experience in a single sentence.
Where the quote comes from
The line comes from Seneca’s Letters to Lucilius, a collection of more than 120 letters he wrote late in life to his younger friend Lucilius, a Roman official serving in Sicily. In Letter 13, often titled “On Groundless Fears,” Seneca writes that there are more things likely to frighten us than to crush us, and that we suffer more often in imagination than in reality.
Seneca knew something about fear. He was a wealthy statesman and writer who lived through the reigns of unpredictable emperors. He spent eight years in exile on Corsica, then served as tutor and adviser to the young Nero, one of Rome’s most dangerous rulers. Eventually Nero ordered him to take his own life, in 65 CE.
When Seneca wrote about fear, he wasn’t speaking from a quiet study. He lived much of his life with real danger close at hand.
What Seneca meant
Seneca’s point wasn’t that bad things never happen. It was that our minds tend to multiply them. We exaggerate how likely a problem is, imagine it worse than it will be, and start suffering long before anything actually happens, if it happens at all.
In the same letter, he offers practical advice. When something worries you, ask whether you have real evidence that it will happen. Many fears, he notes, are based on rumors, guesses or other people’s panic. Others may happen, but not as soon as we imagine, or not as badly.
He also reminds Lucilius that the future is uncertain in both directions. Something you dread may never arrive. Something unexpected may change the situation entirely. So why suffer now over something that may not come?
What psychology has found
Modern research suggests Seneca was onto something. In a 2020 study published in Behavior Therapy, Penn State psychologists Lucas LaFreniere and Michelle Newman asked 29 people with generalized anxiety disorder to record their worries several times a day for 10 days, then track whether those worries came true over the following weeks.
The results were striking. About 91 percent of their worries did not come true. For many participants, none of their worries came true at all. And among the few that did, the outcome was sometimes better than they had expected.
The study involved people with an anxiety disorder, so most people’s worries may not be quite so far off. But it shows how easily the mind can predict disasters that never happen. Participants who saw clear evidence that their worries were wrong also tended to improve more during treatment.
From Stoicism to therapy
Seneca’s ideas have had a long life. He belonged to the Stoic school of philosophy, which taught that much of our distress comes not from events themselves, but from how we judge them. His fellow Stoic Epictetus put it simply: people are disturbed not by things, but by their opinions about things.
That insight later influenced modern psychology. The psychologist Albert Ellis, a founder of cognitive therapies, openly credited Epictetus as an inspiration. Cognitive behavioral therapy, one of today’s most widely used treatments for anxiety, is built on a similar idea: examine your fearful thoughts, test them against evidence and change how you respond.
Imagining the worst, the Stoic way
There’s an interesting twist. Seneca and other Stoics also recommended deliberately imagining misfortune, a practice later called premeditatio malorum, the premeditation of evils. They might picture losing their wealth, their health or even their life.
This might seem to contradict his advice in Letter 13. But the purpose was different. The Stoic exercise was about calm preparation, reminding yourself that you could cope if hardship came. Anxious worry, by contrast, replays imagined disasters again and again without preparing you for anything.
Seneca’s lesson isn’t to ignore risks. It’s to separate useful planning from useless suffering.
Living with less imagined pain
Seneca’s advice can be put into practice in simple ways. When a worry appears, ask what real evidence you have that it will happen. Consider whether it’s as likely, or as bad, as it feels. If there’s something you can do, do it. If not, try to let the thought pass.
Some therapists even suggest keeping a worry diary, writing down fears and later checking how they turned out. Over time, many people discover what Seneca knew long ago.
Most of the disasters we fear never arrive. The suffering we feel while waiting for them is often the only part that’s real.
