The sentences that sound best in their own tongue. Each with a word-by-word gloss, who really said it, the myths around it, and when to drop it into conversation.
Origin. Bṛhadāraṇyaka Upaniṣad 1.4.10 — one of the four mahāvākyas. — Bṛhadāraṇyaka Upaniṣad
For the realization of identity with the absolute — not ego-inflation but ego-dissolution.
Origin. Socrates denied it is possible (no one does wrong knowingly); Aristotle analysed it in Nicomachean Ethics VII. — Aristotle
For procrastination, addiction, knowing better and doing worse — “grant me chastity, but not yet”.
Origin. A medieval Latin compression of Aristotle, Nicomachean Ethics I.6 — “though both are dear, piety requires us to honour truth above our friends.” — Aristotle
For disagreeing with a teacher or ally out of honesty.
Origin. Nietzsche’s Latin coinage — The Gay Science §276 and Ecce Homo — for loving everything that happens, not merely enduring it. The attitude echoes Stoics like Marcus Aurelius and Epictetus. — Friedrich Nietzsche
For radical acceptance; saying Yes to life including its suffering.
Origin. Kierkegaard’s Danish “Angest” (The Concept of Anxiety, 1844), then Heidegger’s Angst in Being and Time. — Martin Heidegger
For existential dread.
Origin. The three marks of existence in the Pāli Buddhist canon. — Gautama Buddha
For the Buddhist diagnosis of existence in three words.
Origin. The state Socrates leaves his partners in at the end of the early dialogues — they realize they don’t know what they thought they knew. — Socrates
For honest bewilderment as the beginning of thought.
Origin. Bṛhadāraṇyaka Upaniṣad 1.3.28 — continued “from darkness to light, from death to immortality.” — Bṛhadāraṇyaka Upaniṣad
As a prayer for truth and understanding.
Origin. The goal of Epicureans and Sceptics alike — freedom from mental disturbance. — Epicurus
For calm, equanimity, the opposite of anxiety.
Origin. Hegel’s key dialectical verb, exploiting the triple meaning of the German word. — Georg Wilhelm Friedrich Hegel
For progress that keeps what it overcomes.
Origin. Traditional summary of Advaita, attributed to Śaṅkara. — Ādi Śaṅkara
⚠ “Mithyā” does not mean non-existent like a hare’s horn, but dependent and ultimately unreal — like the snake seen in a rope.
For Advaita in one line.
Origin. Horace, Odes I.11 — “carpe diem, quam minimum credula postero” (pluck the day, trusting as little as possible in tomorrow).
⚠ “Carpe” is a gardening word — pluck the ripe fruit — gentler than “seize”.
For living in the present, with Epicurean rather than reckless meaning.
Origin. Title of Chernyshevsky’s 1863 novel, then of Tolstoy’s 1886 treatise and Lenin’s 1902 pamphlet — the great Russian question. — Nikolai Chernyshevsky, What Is to Be Done?
⚠ Its partner question, “Kto vinovat?” (Who is to blame?), is the title of Herzen’s 1846 novel.
For moving from diagnosis to action.
Origin. Descartes, first in French (“je pense, donc je suis”, Discourse on Method, 1637), then in Latin in the Principles of Philosophy (1644). — René Descartes
⚠ The Meditations never use this formula — there it is “ego sum, ego existo” (I am, I exist). Augustine had argued “si fallor, sum”.
For the one certainty that survives doubt; the birth of modern subjectivity.
Origin. Popularly attributed to Tertullian (c. 155–220 CE). What he actually wrote, in De Carne Christi 5, about the death and resurrection of Christ, is “credibile est, quia ineptum est … certum est, quia impossibile” — “it is credible because it is foolish … it is certain because it is impossible.” — Tertullian
⚠ The exact words “credo quia absurdum” never appear in Tertullian; the sharpened slogan circulated centuries later. Kierkegaard’s leap of faith made the attitude famous again.
When faith is defended precisely by its defiance of reason — and for the paradox at the heart of the absurd.
Origin. Anselm of Canterbury, Proslogion ch. 1 (1078), echoing Augustine. Anselm’s motto was “fides quaerens intellectum” — faith seeking understanding.
For faith as the starting point of reason, not its enemy — the opposite of Tertullian’s paradox.
Origin. Kant, Critique of Pure Reason — reality as it is independent of how it appears to us. — Immanuel Kant
For what lies beyond appearances and models.
Origin. Heidegger, “What Is Metaphysics?” (1929) — mocked by Rudolf Carnap as the model of a meaningless pseudo-sentence. — Martin Heidegger
⚠ The Carnap–Heidegger clash became a symbol of the split between analytic and continental philosophy.
For nothingness — or for jokes about philosophical jargon.
Origin. Spinoza, Ethics IV, preface and prop. 4 — God and Nature are one and the same infinite substance. — Baruch Spinoza
⚠ “Sive” means “or, in other words” — an identity, not an alternative. That identity got Spinoza called an atheist and a pantheist at once.
For pantheism, naturalism, the sacredness of nature.
Origin. A proverbial motto with echoes in Cicero (Letters to Atticus IX.10 — “while the sick man has breath, there is hope”) and Theocritus.
Against despair.
Origin. The inscription on a tomb in paintings by Guercino (c. 1618) and Poussin (c. 1638), where shepherds discover it. The “I” is Death — even in paradise, death is present.
⚠ Later misread as “I too lived in Arcadia” — a nostalgic reading made famous by Goethe’s use.
For memento mori amid happiness.
Origin. Heraclitus, fragment B119. — Heraclitus
For the idea that fate flows from who we are.
Origin. Aristotle’s term for the highest human good (Nicomachean Ethics I). — Aristotle
When “happiness” is too thin a word.
Origin. The principle goes back to Parmenides (c. 500 BCE), who argued that what-is cannot come from what-is-not. Lucretius put it in Latin verse — “nil posse creari de nilo”, nothing can be created out of nothing (De Rerum Natura I.155–156). The compact form “ex nihilo nihil fit” is a later scholastic formula. — Parmenides
⚠ Christian theology answered with “creatio ex nihilo” — God creates out of nothing, precisely because God is not bound by the rule. Shakespeare’s Lear throws the maxim at Cordelia — “Nothing will come of nothing: speak again.”
Against any argument that pulls something from nowhere — a free lunch, a cause without a cause, a conclusion without premises.
Origin. Inscribed in the forecourt of the Temple of Apollo at Delphi; Socrates made it the charge of his philosophy (Plato, Phaedrus 229e, Charmides 164d). — Socrates
⚠ Originally probably meant “know your place — you are mortal, not a god”, not introspection.
For self-knowledge, humility, the starting point of wisdom.
Origin. Nietzsche, The Gay Science §108 and §125 (1882); repeated in Zarathustra. — Friedrich Nietzsche, The Gay Science
⚠ Hegel used a version earlier (Faith and Knowledge, 1802), quoting a Lutheran hymn — “God himself is dead”.
For secularization and the crisis of values.
Origin. Aristotle, Poetics 13. Later translated as “tragic flaw”, though Aristotle meant an error of judgment. — Aristotle
⚠ In the New Testament the same word means “sin”.
For Lear’s vanity, Macbeth’s ambition, Hamlet’s delay.
Origin. A later Greek slogan summarizing Socrates in Plato’s Apology (21d). — Socrates
⚠ Socrates never says this in Plato. His claim is subtler — he does not think he knows what he does not know.
For intellectual humility — and for correcting someone who quotes it as Socrates’ exact words.
Origin. Plautus, Asinaria 495 (“lupus est homo homini”). Hobbes quotes it in the dedication of De Cive (1642) — beside its opposite, “man is a god to man”.
For human cruelty, the state of nature, political realism.
Origin. Camus, last line of The Myth of Sisyphus (1942). — Albert Camus
For meaning in the struggle itself.
Origin. Bhagavad Gītā 2.47. — The Bhagavad Gītā
For acting well without anxiety about outcomes.
Origin. Aristotle, Poetics 6 — tragedy through pity and fear accomplishes the catharsis of such emotions. — Aristotle
For why we watch tragedies like Hamlet and Lear.
Origin. Sartre, No Exit (Huis clos), 1944. — Jean-Paul Sartre
⚠ Sartre said it means that if our relations with others are twisted, others become hell — because we depend on their judgment to know ourselves.
For the tyranny of the gaze and of reputation.
Origin. Sartre, Existentialism Is a Humanism (1945). — Jean-Paul Sartre
The motto of existentialism.
Origin. Pascal, Pensées §347 (Brunschvicg). The universe can crush him, but he knows he dies; the universe knows nothing.
For human fragility and dignity in one image.
Origin. Dante, Inferno III.9 — the inscription over the gate of Hell.
⚠ Often misquoted as “Abandon hope all ye who enter here”.
For hopeless situations — with dark humour.
Origin. Blaise Pascal, Pensées (1670), §277 (Brunschvicg).
⚠ Pascal means the heart’s intuitive knowledge of God and first principles — not romantic love.
For intuition and faith beyond argument.
Origin. For Heraclitus the rational order of the cosmos; for the Stoics divine reason in all things; for John’s Gospel the divine Word (“In the beginning was the Logos”). — Heraclitus
For the idea that the world has a rational structure.
Origin. Sartre, Being and Nothingness (1943). — Jean-Paul Sartre
For self-deception, hiding behind roles.
Origin. A medieval Christian formula, rooted in the ancient practice (attested later) of a slave whispering “remember you are mortal” to a triumphant Roman general. It gave its name to a whole genre of art — skulls, hourglasses, Hamlet with Yorick.
For humility, urgency, the vanity of ambition.
Origin. Dostoevsky, The Idiot (1869), Part III — attributed to Prince Myshkin by Ippolit. — Fyodor Dostoevsky
⚠ Reported, not asserted, in the novel — and asked with irony.
For the redemptive power of beauty.
Origin. Dante, Inferno I.1 — “I found myself in a dark wood, for the straight way was lost.”
For the mid-life crisis — Dante’s, Tolstoy’s, yours.
Origin. Bṛhadāraṇyaka Upaniṣad 2.3.6 and Yājñavalkya’s teachings (4.2.4, 4.5.15). — Yājñavalkya, Bṛhadāraṇyaka Upaniṣad
For the via negativa — reaching the absolute by negating every description.
Origin. The closing invocation of Upanishadic recitation; the threefold peace is for the three kinds of disturbance — from within, from other beings, from the gods/nature.
⚠ T. S. Eliot ended The Waste Land with it, glossing it as “the Peace which passeth understanding”.
To close.
Origin. The summary of Heraclitus’ doctrine — but the phrase itself appears first in later writers (Simplicius); it is not among his fragments. — Heraclitus
⚠ A slogan about Heraclitus, not by him.
For impermanence and change.
Origin. Horace, Epistles I.2.40 (“dimidium facti qui coepit habet; sapere aude” — “he who has begun is half done; dare to be wise”). Kant made it the motto of the Enlightenment in “What Is Enlightenment?” (1784). — Immanuel Kant
For intellectual courage and thinking for yourself.
Origin. Muṇḍaka Upaniṣad 3.1.6 — the national motto of India, inscribed beneath the Lion Capital emblem.
For integrity and truth over expediency.
Origin. From the papal coronation ritual (from the 15th century) — flax was burned before the new pope as these words were spoken.
For the fall of the mighty, the end of fame.
Origin. Spinoza, Ethics V — the highest knowledge sees things not in time but as following necessarily from God’s eternal nature. — Baruch Spinoza
For seeing one’s troubles from the widest possible perspective.
Origin. Cicero’s Latin for the Greek ethical question — what is the final end of life? For Kant, the union of virtue and happiness.
For debates about the purpose of life.
Origin. Roman wax tablets were scraped smooth to be reused. The image of the mind as a blank tablet goes back to Aristotle (De Anima III.4); Locke’s “white paper” made it the emblem of empiricism. — John Locke
⚠ Locke himself does not use the Latin phrase in the Essay; he says “white paper”.
For nurture versus nature, fresh starts, empiricism.
Origin. Chāndogya Upaniṣad 6.8.7, repeated nine times by Uddālaka to his son Śvetaketu. — Uddālaka Āruṇi, Chāndogya Upaniṣad
⚠ Some scholars (Joel Brereton) argue the grammar may mean “you are that (finest essence)” — the reading of identity with Brahman comes from the Vedāntic tradition.
For non-duality, the unity of self and cosmos, compassion grounded in identity (Schopenhauer).
Origin. Nietzsche, Thus Spoke Zarathustra (1883). — Friedrich Nietzsche
⚠ Not a biological master race — a self-overcoming ideal. Shaw’s “Man and Superman” made “superman” the English word.
For self-overcoming and creating values.
Origin. Kaṭha Upaniṣad 1.3.14 — continued “approach the great and learn”. Vivekananda’s call to India. — Kaṭha Upaniṣad
For awakening, effort, self-improvement.
Origin. The Vulgate’s rendering of Ecclesiastes 1:2. The Hebrew “hevel” means vapour, breath — what vanishes.
For the futility of ambition; the oldest nihilist sentence in Scripture. Tolstoy quotes it in A Confession.
Origin. Mahā Upaniṣad 6.71–72 — “’this is mine, that is another’s’ is the reckoning of the narrow-minded; for the noble-hearted, the whole earth is family.” Also in the Hitopadeśa.
For cosmopolitanism and universal kinship.
Origin. The Brothers Karamazov (1880) — the conclusion attributed to Ivan’s theory if there is no God and no immortality. — Fyodor Dostoevsky, The Brothers Karamazov
⚠ The full sentence “if God does not exist, everything is permitted” does not appear verbatim.
For moral nihilism and its consequences.
Origin. Coined by Jean Paul in Selina (1827); the mood of Byron, Heine, Lermontov.
For romantic melancholy, existential sadness.
Origin. Nietzsche’s rendering of Pindar, Pythian 2.72 — “γένοι’ οἷος ἐσσὶ μαθών” (become such as you are, having learned what that is). — Friedrich Nietzsche
For self-realization.
Origin. Herder and Goethe popularized it; associated with Hegel’s philosophy of history (though Hegel preferred “Geist der Zeit”). — Georg Wilhelm Friedrich Hegel
For the mood and ideas of an era.
Origin. Aristotle, Politics I.2. — Aristotle
For human beings as social by nature.
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