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23. How to live given the certainty of death
YaleCourses · Watch on YouTube · Generated with SnapSummary · 2026-09-20

Summary — Professor Shelly Kagan on How to Live in Light of Death 🕰️💭

Main Question

  • How should we live, given that we will die?
    • Prior discussion: emotional responses to death (fear vs. gratitude).
    • Now: practical implications for how to plan and fill life.

Key Premises

  • Mortality highlights risk of “blowing it” (choosing wrong aims or executing poorly).
  • Even immortality wouldn't eliminate the possibility of a wasted life, but it would allow more do-overs.
  • What makes mortality pressing: the world is rich; many valuable aims are difficult and time-consuming → limited time increases the stakes.

Two Types of Care Required

  • Be careful in what you aim for (choose worthwhile goals).
  • Be careful in how you pursue them (execute well), because time for redoing is limited.

Strategies for Packing Value into Life 🎯🍨

Underlying idea: “Pack as much value into life as you can.” Two basic strategies (plus a mix):

  1. Strategy 1 — Secure, Small Goods ("Eat, drink, and be merry")

    • Aim for goals you're almost guaranteed to achieve (pleasure, company, food, sex, simple comforts).
    • Low risk of failure, but yields relatively modest goods.
  2. Strategy 2 — Ambitious, High-Value Goods

    • Aim for rarer, high-payoff achievements (great art, major accomplishments, raising a family, lasting contributions).
    • Higher potential value but much greater risk of failure and wasted time.
  3. Strategy 3 — Mixed Approach

    • Balance a few ambitious aims with many reliable pleasures.
    • Raises the question: what is the right mixture? (No definitive answer given.)

Quantity vs. Quality Debate (Length vs. Peak)

  • We can view a life’s value as duration × quality (area metaphor). Longer + good life usually better.
  • Counterexample: A short, very high-quality life vs. a long, barely-positive life (e.g., 150 years at high quality vs. 30,000 years at minimal quality).
    • Many prefer the shorter, high-quality life → suggests total quantity is not the whole story.
  • Introduce the idea that peaks/quality can trump quantity: the highest goods or singular great achievements matter in themselves.

Hölderlin’s View (Quality/Peak Emphasis) 🎼

  • Poem “To the Parcae”: one great summer and a ripened song may justify a life; “once I lived like the gods, more is not needed.”
  • Radical view: achieving a sublime peak can make additional duration unnecessary.

Semi-Immortality (Living-On Through Something)

Two forms people pursue to mitigate death’s sting:

  1. Biological/Physical Continuation

    • Offspring, recycled atoms, biological persistence.
    • Kagan finds this mostly unconvincing and insufficient consolation.
  2. Achievement-Based Continuation (Works, Influence, Legacy)

    • Cultural, intellectual, or material contributions that outlast you (poetry, buildings, science, children raised well).
    • Kagan is ambivalent but generally attracted to this idea: durable accomplishments can meaningfully add value.

Alternative Approach: Life as Not Worth Having (Minimize Loss)

  • Opposing strategy: life is fundamentally suffering (Buddhist perspective → Four Noble Truths).
    • If life is net suffering, loss of life isn’t bad; better to minimize attachment/ego to reduce mourning death.
  • Kagan respects this view but rejects it for himself (identifies with Western tradition: life can be good).

Takeaway Themes

  • Mortality imposes practical constraints: limit of time plus richness of possible goods = need for care in aims and execution.
  • Important trade-offs:
    • Secure pleasures vs. ambitious, risky accomplishments.
    • Quantity (duration × average quality) vs. peaks (highest quality moments/achievements).
    • Pursuing semi-immortality through legacy vs. accepting impermanence.
  • No single definitive prescription offered—Kagan frames options and tensions for individual judgment.

Suggested Reflection Questions ✅

  • Do you prioritize secure pleasures or ambitious projects? Or a mix?
  • Would you trade years of life for higher peak achievements?
  • Do you seek semi-immortality via offspring or lasting works, and why?

Emojis: 🕰️ (mortality), 🎯 (goals), 🍨 (small pleasures), 🎼 (art/peak), 🌱 (legacy), 🧘 (Buddhist alternative)

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