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Cicero Quotes: Sources, Meanings & Themes

Browse quotations by Cicero with named works, context notes, meanings and recurring themes.

About the author

Context for this collection

106–43 BCE · Roman statesman and philosopher

Common themes

Friendship, prudence, aging, duty, justice, gratitude, inner stability and practical judgment.

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Focused topic collections for Cicero

Every publication-ready author-and-topic collection is linked here so the complete focused guide set remains directly discoverable from this author page.

Source identified1
No one is so old as to think that he may not live a year.

“No one is so old as to think that he may not live a year.”

Voice: Dialogue speaker · Marcus Cato (Cato the Elder)

Even late in life people naturally continue to imagine a future, which helps explain why worthwhile work and planning do not simply stop with age.

Source details

Cato on Old Age, Shuckburgh translation, in a passage about older people planting for those who come after them.

Source identified2
For of course rashness is the note of youth, prudence of old age.

“For of course rashness is the note of youth, prudence of old age.”

Voice: Dialogue speaker · Marcus Cato (Cato the Elder)

The contrast assigns different characteristic strengths to stages of life, valuing experience for the restraint and judgment it can develop.

Source details

Cato on Old Age, Shuckburgh translation.

Source identified3
The course of life is fixed, and nature admits of its being run but in one way, and only once.

“The course of life is fixed, and nature admits of its being run but in one way, and only once.”

Voice: Dialogue speaker · Marcus Cato (Cato the Elder)

Each stage of life occurs only once, so wisdom includes accepting its appropriate strengths instead of endlessly trying to restore an earlier stage.

Source details

Cato on Old Age, Shuckburgh translation, in Cicero’s discussion of the distinctive advantages of each season of life.

Source identified4
You should use what you have, and whatever you may chance to be doing, do it with all your might.

“You should use what you have, and whatever you may chance to be doing, do it with all your might.”

Voice: Dialogue speaker · Marcus Cato (Cato the Elder)

Capability should be judged by the resources actually available now, then used fully instead of being measured only against a younger or stronger self.

Source details

Cato on Old Age, in Cicero’s answer to the complaint that age reduces physical strength.

Source identified5
A true friend is, as it were, another self.

“A true friend is, as it were, another self.”

Voice: Dialogue speaker · Gaius Laelius

The phrase captures the intimacy of friendship: another person becomes close enough that concern for them resembles concern for oneself.

Source details

De Amicitia, chapter 21 / classical section 80, Andrew P. Peabody translation, Project Gutenberg #7491. Laelius says that unless self-love is transferred into friendship a true friend cannot be found, “for such a friend is, as it were, another self.” The familiar another-self formulation is presented in its philosophical context and not as a literal identity claim.

Source identified6
Friendship springs from nature rather than from need.

“Friendship springs from nature rather than from need.”

Voice: Dialogue speaker · Gaius Laelius

Friendship is not reduced to usefulness; Cicero argues that it arises from natural affection before calculations of advantage.

Source details

De Amicitia, chapter 8 / classical section 27, Andrew P. Peabody translation, Project Gutenberg #7491. Laelius argues that friendship springs from nature rather than need and from an inclination of the mind with consciousness of love rather than calculation of utility. This is Cicero’s philosophical position voiced through Laelius, not modern social-science evidence.

Source identified7
Friendship has more advantages than I can easily name.

“Friendship has more advantages than I can easily name.”

Voice: Dialogue speaker · Gaius Laelius

The value of friendship is intentionally left larger than a checklist, because companionship affects many parts of life at once.

Source details

De Amicitia, chapter 6 / classical section 22, Andrew P. Peabody translation, Project Gutenberg #7491. “Friendship has more advantages than I can easily name” introduces Laelius’ catalogue of the many uses and consolations of friendship; the open-ended praise remains rhetorical/philosophical rather than a quantified claim about relationship outcomes.

Source identified8
Firm, steadfast, self-consistent men are to be chosen as friends.

“Firm, steadfast, self-consistent men are to be chosen as friends.”

Voice: Dialogue speaker · Gaius Laelius

Reliable friendship depends on reliable character; steadiness matters because trust cannot grow when conduct constantly changes with advantage.

Source details

De Amicitia, chapter 17 / classical section 62, Andrew P. Peabody translation, Project Gutenberg #7491. “Firm, steadfast, self-consistent men are to be chosen as friends” follows Laelius’ recollection of Scipio’s concern that people test possessions more carefully than friendships. The counsel remains ancient character ethics rather than a diagnostic rule for evaluating people.

Source identified9
Such friendship at once enhances the lustre of prosperity, and by dividing and sharing adversity lessens its burden.

“Such friendship at once enhances the lustre of prosperity, and by dividing and sharing adversity lessens its burden.”

Voice: Dialogue speaker · Gaius Laelius

A good friend does not matter only in crisis: companionship can enlarge good fortune while also making hardship easier to carry because difficulty is no longer borne alone.

Source details

De Amicitia, chapter 6 / classical section 22, Andrew P. Peabody translation, Project Gutenberg #7491. “Such friendship at once enhances the lustre of prosperity, and by dividing and sharing adversity lessens its burden” closes Laelius’ contrast between ordinary association and true/perfect friendship. The sentence remains ancient ethical rhetoric rather than a guaranteed psychological effect of companionship.

Source identified10
Friendship is nothing else than entire fellow feeling as to all things human and divine with mutual good-will and affection.

“Friendship is nothing else than entire fellow feeling as to all things human and divine with mutual good-will and affection.”

Voice: Dialogue speaker · Gaius Laelius

Cicero defines the strongest friendship as a broad sharing of concern, judgment and goodwill rather than a narrow exchange of favors or useful contacts.

Source details

De Amicitia (Laelius de Amicitia), chapter 6 / classical section 20, Andrew P. Peabody translation, Project Gutenberg #7491. Laelius defines friendship as entire fellow feeling in human and divine things joined with mutual goodwill and affection. Cicero remains the work author while Gaius Laelius is the local dialogue speaker; this is ancient ethical-philosophical argument rather than a modern empirical definition of friendship.

Source identified12
No duty is more imperative than that of proving one's gratitude.

“No duty is more imperative than that of proving one's gratitude.”

Gratitude is framed as an obligation to recognize and answer benefits already received, not merely as a pleasant feeling toward a benefactor.

Source details

De Officiis, Book I, section 47; Cicero discusses how kindness already received creates a stronger duty of requital.

Source identified13
For we have confidence in those who we think have more understanding than ourselves

“For we have confidence in those who we think have more understanding than ourselves”

Cicero treats confidence in another person as partly a judgment about competence: people are more willing to rely on someone they believe can understand difficult circumstances and reach sound decisions.

Source details

De Officiis, Book II, section 33, Project Gutenberg #47001. Cicero’s larger argument says public confidence depends on practical wisdom joined with justice; intelligence alone is not presented as sufficient for trust.

Source identified14
The foundation of justice, moreover, is good faith—that is, truth and fidelity to promises and agreements.

“The foundation of justice, moreover, is good faith—that is, truth and fidelity to promises and agreements.”

Justice depends on reliable commitments because social cooperation becomes unstable when promises and agreements are treated as optional whenever they become inconvenient.

Source details

De Officiis, Book I, section 23; Cicero defines good faith through truth and fidelity to promises and agreements.

Source identified15
The greatest privilege of wealth is, beyond all peradventure, the opportunity it affords for doing good, without sacrificing one’s fortune.

“The greatest privilege of wealth is, beyond all peradventure, the opportunity it affords for doing good, without sacrificing one’s fortune.”

Wealth is given ethical value when it creates capacity to help others sustainably rather than serving only accumulation, display, or personal appetite.

Source details

De Officiis, Book II, section 64; Cicero discusses generosity while also warning against careless management of one’s property.

Source identified16
Is not prosperity robbed of half its value if you have no one to share your joy?

“Is not prosperity robbed of half its value if you have no one to share your joy?”

Voice: Dialogue speaker · Gaius Laelius

Good fortune becomes more meaningful when it can be shared, making companionship part of the value of prosperity itself.

Source details

Laelius on Friendship; the surrounding passage pairs shared joy with support during misfortune.

Source identified17
What can be more delightful than to have some one to whom you can say everything with the same absolute confidence as to yourself?

“What can be more delightful than to have some one to whom you can say everything with the same absolute confidence as to yourself?”

Voice: Dialogue speaker · Gaius Laelius

Close friendship creates a rare space for frank speech because confidence in the other person removes the need for continual self-protection.

Source details

Laelius on Friendship, translated by Evelyn S. Shuckburgh in Project Gutenberg’s Treatises on Friendship and Old Age.

Source identified18
You might just as well take the sun out of the sky as friendship from life; for the immortal gods have given us nothing better or more delightful.

“You might just as well take the sun out of the sky as friendship from life; for the immortal gods have given us nothing better or more delightful.”

Voice: Dialogue speaker · Gaius Laelius

Friendship is treated not as an optional ornament but as one of the basic goods that makes ordinary life worth inhabiting.

Source details

Laelius on Friendship, Shuckburgh translation.

Source identified19
Regard friendship as the greatest thing in the world; for there is nothing which so fits in with our nature, or is so exactly what we want in prosperity or adversity.

“Regard friendship as the greatest thing in the world; for there is nothing which so fits in with our nature, or is so exactly what we want in prosperity or adversity.”

Voice: Dialogue speaker · Gaius Laelius

Cicero presents friendship as suited to human nature because it serves both celebration and hardship rather than belonging to only one circumstance.

Source details

Laelius on Friendship; Laelius frames friendship as useful and natural in both good and difficult times.

Source identified20
For I now call a freedom from anxiety a security, on which freedom a happy life depends.

“For I now call a freedom from anxiety a security, on which freedom a happy life depends.”

Voice: Dialogue speaker · M. (Cicero’s dialogue persona)

Cicero treats inner security as freedom from destabilizing anxiety, making mental steadiness an important condition of a genuinely happy and self-directed life.

Source details

Tusculan Disputations, Book V, section XIV, represented by Project Gutenberg #14988. Cicero defines security parenthetically as freedom from anxiety while arguing that a happy life must rest on stable goods and virtue rather than vulnerable externals. It remains ancient philosophical psychology mediated by translation, not modern clinical anxiety-treatment evidence.