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Marcus Aurelius vs Seneca the Younger on Life

Seneca's letters frame the Stoic life as the disciplined cultivation of moral seriousness under conditions of public engagement and private friendship; the worldly entanglements of his addressees are not denied but reframed. Marcus's Meditations frame the Stoic life as the daily discipline of an emperor reminding himself of mortality, the rational order of nature, and the demands of his office. Both teach that the well-lived life is the life lived in accordance with reason, but they exemplify different sites of that practice.

About this topic

The question of what makes a life worth living runs through almost every philosophical tradition. Ancient philosophers identified the good life with virtue, contemplation, or the absence of disturbance; medieval thinkers tied it to the love of God and the order of creation; modern philosophers have located meaning in autonomy, projects, relationships, or self-creation. The quotes collected here range across all these strands, from Stoic counsels of resilience to existentialist treatments of meaning under conditions of uncertainty.

For a side-by-side overview of the two philosophers more broadly, see the full Marcus Aurelius vs Seneca the Younger comparison. To browse philosophy more widely on this theme, see the Life quotes hub.

Representative quotes on life

Marcus Aurelius on life

  • “The universe is change; our life is what our thoughts make it.”

    The universe is flux, life is opinion.

  • “You could leave life right now. Let that determine what you do and say and think.”

    Meditations, Book II | II, 11

  • “Consider thyself to be dead , and to have completed thy life up to the present time; and live according to nature the remainder which is allowed thee.”

    Meditations, Book VII | Variant: Think of yourself as dead. You have lived your life. Now, take what's left and live it properly. VII, 56

  • “Turn thy thoughts now to the consideration of thy life, thy life as a child, as a youth, thy manhood, thy old age, for in these also every change was a death. Is this anything to fear?”

    Meditations, Book IX | IX, 21

  • “Live as on a mountain. ...Let men see, let them know a real man who lives according to nature. If they cannot endure him, let them kill him. For that is better than to live thus.”

    Meditations, Book X | X, 15

All 16 Marcus Aurelius quotes on life →

Seneca the Younger on life

  • “While we are postponing, life speeds by.”

    Letters to Lucilius, 1

  • “Sometimes even to live is an act of courage.”

    Aliquando enim et vivere fortiter facere est

  • “Just as we suffer from excess in all things, so we suffer from excess in literature; thus we learn our lessons, not for life, but for the lecture room.”

    Letter CVI: On the corporeality of virtue | Line 12

  • “It is not that we have a short space of time, but that we waste much of it. Life is long enough.”

    Moral Essays | De Brevitate Vitae ("On the Shortness of Life", trans. John W. Basore), Ch. 1

  • “Pyrrhus: No law the wretched captive's life doth spare. Agamemnon: What law forbids not, let this shame forbid. Pyrrhus: 'Tis victor's right to do whate'er he will. Pyrrhus: Then should he will the least who most can do.”

    Troades(The Trojan Women) | lines 333-336

All 12 Seneca the Younger quotes on life →

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