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Cover of Ethics by Baruch Spinoza

Ethics

Baruch Spinoza
— 1677 —
“
Written in geometric form (definitions, axioms, propositions, QED), Spinoza proves that God and Nature are one substance, that free will is an illusion, and that blessedness comes from understanding your place in the whole.

Decide its fate

The record

  • Time

    An eveningA season

    208 pages, about 4 hours: two-thirds the length of a typical book on the shelf.

  • Getting in

    Walk right inSteep climb

    Part One opens with definitions and axioms about God, where one reader stalled before finishing on a later attempt.

  • What it gives

    Plot and actionIdeas to live by

    In 14 reviews from critics and book blogs, 2 credit the plot and 10 credit the ideas or a change in how they live.

  • One of a kind

    Others do thisNothing else does

    No reviewer names a book on the shelf that works like its geometric method of axioms and demonstrations.

The case for it

  • on the Part Four appendix

    “the Appendix to Part Four, where Spinoza summarizes his psychological results, providing simple advice”

    a book blog
  • on Human Bondage

    “Once that starts to happen, it really changes you as a person.”

    a book blog
  • on Carlisle’s introduction

    “Carlisle’s lengthy introduction and accompanying notes make Ethics accessible”

    Diana Pringle · Existential Analysis, 2021
  • on the payoff

    “The juice will be worth the squeeze.”

    a Substack review

The case against

  • on the geometric method

    “an extemely dense text that is both eternally fascinating and eternally difficult”

    a Substack review
  • on the prose

    “elaboratively and eloquently written heap of non-sense”

    a book blog
  • on the geometric proofs

    “painstakingly accumulated in the Cartesian language of axioms, propositions and demonstrations”

    Alex Christofi · New Humanist, 2020
  • on Part Five

    “It is by far the hardest and most enigmatic part of the text.”

    a book blog

Time is counted from its page count. What it gives counts 14 reviews from critics and book blogs, and Getting in and One of a kind apply written rules to what reviewers report. Quotes were checked on their pages on 29 September 2026. Loved, Disliked and Staying power appear once enough readers here have finished the book.

4h
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6
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