Attribution
Marcus Aurelius did not write that what we do in life echoes in eternity. A screenwriter did, in 1999. Seneca did not write that every new beginning comes from some other beginning’s end. That is the last line of a Semisonic song.
We found these by auditing our own app.
Marcus is a Stoic practice app, and its daily reading draws from a library of passages we had assembled over months. In August 2026 we checked that library against its sources, properly, one line at a time. Fifty-five entries were not what they claimed to be. Some belonged to other philosophers. Some belonged to other centuries. Two were written for this app and quietly attributed to Marcus Aurelius, which is the kind of thing that happens when nobody is checking.
We took them out. This page is what we found, because the same quotations are still circulating everywhere else, and because a philosophy about seeing things as they actually are deserves better sourcing than it usually gets.
Where the real author is known, it is named. Where a line simply has no ancient source and its modern origin is genuinely disputed, this page says that instead of guessing. Being confidently wrong is the failure mode we are describing, so it seemed a poor one to repeat.
These were written in the last three hundred years, several within living memory. One is from a film about Marcus Aurelius, which is how it acquired his name.
What we do in life echoes in eternity.
Usually credited toMarcus Aurelius
ActuallyGladiator (2000), screenplay by David Franzoni, John Logan and William Nicholson
Spoken by Russell Crowe as Maximus, in a film whose emperor is Marcus Aurelius. That proximity is why it spread. It appears nowhere in the Meditations, in any translation, because it was written for the screen in the late 1990s.
Every new beginning comes from some other beginning's end.
Usually credited toSeneca
ActuallySemisonic, "Closing Time" (1998), written by Dan Wilson
The closing line of a song about a bar shutting for the night. Dan Wilson has said he was also writing about his daughter being born. It is not a translation of anything.
We are what we repeatedly do. Excellence, then, is not an act, but a habit.
Usually credited toAristotle
ActuallyWill Durant, The Story of Philosophy (1926)
Durant was summarizing Aristotle, and said so. The sentence is his own compression of a passage in the Nicomachean Ethics about virtue arising from habituation. It is the most quoted thing Aristotle never wrote.
The secret of change is to focus all of your energy not on fighting the old, but on building the new.
Usually credited toSocrates
ActuallyDan Millman, Way of the Peaceful Warrior (1980)
Spoken by a character in a modern novel, in a book whose narrator is taught by a mentor figure. Socrates left no writings at all, which is worth remembering every time a tidy aphorism is credited to him.
One must cultivate one's garden.
Usually credited toSeneca
ActuallyVoltaire, Candide (1759)
The last line of Candide, and the conclusion of an argument against exactly the kind of providential optimism the Stoics held. Attributing it to a Stoic inverts its point.
Be kind, for everyone you meet is fighting a hard battle.
Usually credited toSeneca, sometimes Plato
ActuallyIan Maclaren (pen name of John Watson), 1897
A Scottish minister writing a Christmas message. The sentiment is compatible with Stoic oikeiosis, which is probably why it migrated, but the words are Victorian.
Treat yourself and others as an end, not as a means to an end.
Usually credited toSeneca
ActuallyImmanuel Kant, Groundwork of the Metaphysics of Morals (1785)
The second formulation of the categorical imperative. Kantian deontology is a different ethical system from Stoic virtue ethics, not a restatement of it.
Courage is the first of human qualities because it is the quality which guarantees the others.
Usually credited toAristotle
ActuallyWinston Churchill
Churchill, writing in the twentieth century about courage as the enabling virtue. Aristotle does treat courage in the Ethics, which is how the swap survives a glance.
The world turns aside to let any man pass who knows where he is going.
Usually credited toEpictetus
ActuallyDavid Starr Jordan, early twentieth century
An American academic, not a Roman slave. The cadence is motivational-poster English, which is usually the tell.
When you arise in the morning, think of what a precious privilege it is to be alive, to breathe, to think, to enjoy, to love.
Usually credited toMarcus Aurelius
ActuallyElbert Hubbard, The Fra: For Philistines and Roycrofters, volume 12 (1913)
An American arts-and-crafts publisher writing in 1913. The register is the tell: Marcus does address himself at dawn, in Meditations V.1, but to argue himself out of staying in bed rather than to celebrate breathing. Traced by Gregory Sadler.
The object of life is not to be on the side of the majority, but to escape finding oneself in the ranks of the insane.
Usually credited toMarcus Aurelius
ActuallyLeo Tolstoy, Bethink Yourselves! (1904)
Tolstoy, in an anti-war essay written seventeen centuries after Marcus. It circulates so widely under the wrong name that it appears in printed collections. Traced by Gregory Sadler.
The greater the difficulty, the more glory in surmounting it.
Usually credited toEpictetus
ActuallyCharles de Saint-Evremond, An Essay on the Vindication of Epicurus and his Doctrine
A seventeenth-century French writer, in an essay about Epicurus rather than Epictetus. The two names are confused constantly, which is probably how it travelled. Traced by Gregory Sadler.
Circumstances do not make the man, they only reveal him to himself.
Usually credited toEpictetus
ActuallyJames Allen, As a Man Thinketh (1903)
Early twentieth-century self-help, and the cadence gives it away once you know. Traced by Gregory Sadler.
Real quotations from real sources, filed under the wrong person. These are the hardest to catch, because nothing about the language gives them away.
Know thyself.
Usually credited toSocrates
ActuallyInscribed at the Temple of Apollo at Delphi
A Delphic maxim that predates Socrates and that he quoted rather than coined. Crediting it to him turns a piece of shared Greek religious furniture into one man's epigram.
A person's character is their destiny.
Usually credited toEpictetus
ActuallyHeraclitus, ethos anthropoi daimon
Heraclitus predates Stoicism and heavily influenced it, so the idea is genuinely in the family. The line is still his.
Fortune favours the bold.
Usually credited toSeneca
ActuallyVirgil, Aeneid X.284
Audentis Fortuna iuvat. Roman, and contemporary-ish with Seneca, but epic poetry rather than philosophy.
The mark of a moderate man is freedom from his own ideas.
Usually credited toMarcus Aurelius
ActuallyTao Te Ching
A different continent and a different tradition. The overlap between Stoic and Taoist acceptance is real and is why the misfiling goes unnoticed.
Grasp the subject, the words will follow.
Usually credited toCato the Younger, the Stoic
ActuallyCato the Elder, his great-grandfather
Rem tene, verba sequentur. Two different men, four generations apart, and only the younger was a Stoic. The name alone does the damage here.
Either God wants to abolish evil and cannot, or he can but does not want to.
Usually credited toEpictetus
ActuallyThe Epicurean paradox, reported by Lactantius
An argument against providence, preserved by a Christian writer quoting Epicureans. The Stoics believed in a providential cosmos, so this is close to the opposite of what Epictetus taught.
No surviving text contains these. Some are loose paraphrases that hardened into quotations; some appear to have been invented whole. Where the real origin is genuinely unclear, this page says so rather than guessing.
Everything we hear is an opinion, not a fact. Everything we see is a perspective, not the truth.
Usually credited toMarcus Aurelius
ActuallyNo known source. It is not in Marcus Aurelius.
No translation of the Meditations contains this. It appears to be a modern reworking of Meditations II.15, which is four words long and is Marcus quoting Monimus the Cynic: everything is what you suppose it to be. The rewrite turns a remark about judgment into a claim about the unreliability of perception, which is not a Stoic position. Identified by Thomas Colligan writing for Modern Stoicism.
It's not what happens to you, but how you react to it that matters.
Usually credited toEpictetus
ActuallyNo known source. It is not in Epictetus.
This is a modern paraphrase of Enchiridion 5, not a translation of it. What Epictetus actually wrote is: men are disturbed not by things, but by the opinions they hold about things. The paraphrase is serviceable. It is just not a quotation, and the difference matters when it is set in quote marks with his name under it.
Beware the barrenness of a busy life.
Usually credited toSocrates
ActuallyNo known source. It is not in Socrates.
No ancient source. It reads as twentieth-century English and appears in no Platonic dialogue, which is the only place a saying of Socrates could come from.
Everything in moderation, including moderation.
Usually credited toMarcus Aurelius
ActuallyNo known source. It is not in Marcus Aurelius.
A modern joke about the Greek maxim, not the maxim. The self-referential twist is the giveaway: it is a punchline that requires the original to already be a cliche.
Luck is what happens when preparation meets opportunity.
Usually credited toSeneca
ActuallyNo known source. It is not in Seneca.
Widely credited to Seneca and traceable to no letter or essay. Twentieth-century American in origin, though which speaker first said it is genuinely disputed, which is why no name is claimed here.
A gem cannot be polished without friction, nor a man perfected without trials.
Usually credited toSeneca
ActuallyNo known source. It is not in Seneca.
Circulates as both Seneca and Confucius, which on its own is a warning sign: a line claimed by two traditions a continent apart usually belongs to neither.
Three entries on this page were still live in our own app after the first audit, and we removed them only because someone else had done the work. Gregory Sadler traced the Elbert Hubbard and Tolstoy lines. Thomas Colligan, writing for Modern Stoicism, showed that the everything-we-hear line is a reworking of a four-word passage that means something else. A page about honest attribution that quietly took credit for their research would be self-refuting.
Four questions catch almost everything on this page.
Is there a citation? Not “Marcus Aurelius” but “Meditations, V.20”. Real quotations survive inside numbered works. A quote card with a name and no book is a quote whose source nobody checked.
Does it sound translated? Ancient prose arrives through a translator and keeps some of the joins. Aphorisms that scan perfectly in modern English, with a neat rhythm and a twist at the end, are usually modern English.
Did the person write anything? Socrates left no writings. Zeno’s books are entirely lost. Anything attributed to them comes secondhand through someone else, and should say so.
Is it claimed by two traditions? A line credited to both Seneca and Confucius belongs to neither. Cross-tradition popularity is a symptom of an orphan quote finding homes.
Marcus is a daily Stoic practice for iOS. Every passage it shows you has been through the audit described above, and the ones we could not source are gone rather than quietly kept.
Explore the app →See also the Stoics themselves and the translations worth reading.