WorkBaruch Spinoza

The Correspondence of Spinoza

Not a treatise but a working philosopher answering his critics — letters to a Royal Society secretary, a grain merchant, and a German nobleman, on God, evil, and infinity.

by Baruch Spinoza198 passages held

English, a translation held here, and your language

Original title: Epistolae
First published: 1677(aged 45)
Original language: Latin

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Overview

Henry Oldenburg, secretary of the new Royal Society in London, sought out the young lens-grinder at Rijnsburg in 1661 and went home unable to stop writing to him; their exchange, sustained across some fifteen years, runs through the whole collection. This is not a book Spinoza sat down to write. It is his surviving correspondence — eighty-eight letters, about fifty of them his own — gathered after his death from the people he argued with: Oldenburg on God and nature, the Dordrecht grain merchant Willem van Blijenbergh on the problem of evil, the mathematician Ehrenfried von Tschirnhaus pressing him on how the many things of the world can follow from a single substance. Here Spinoza works out in the open what the Ethics would present as already proved, and defends it against readers who saw exactly where it led. The letters reached print in the Opera Posthuma of 1677, but not whole: the editors, friends who feared the authorities, cut personal passages, dropped correspondents' names, and kept only what bore on the philosophy — so what we read is a selection made under threat. The volume was banned with the rest in 1678. For later readers the letters became indispensable in a way the finished books are not. They are the record of a system being built, questioned, and repaired — the one place Spinoza can be watched thinking rather than concluding.

Key concepts

What is the image of the conscious stone?

It is Spinoza's sharpest picture of the freedom-necessity problem, from a letter to Schuller. Imagine a stone set moving and suppose it conscious: it would feel itself striving freely to continue, knowing nothing of the hand that threw it. Human free will, Spinoza says, is exactly this — we are aware of our desires but blind to the causes that determine them, and mistake ignorance of cause for freedom.

What are the 'infinite modes' the letters describe?

In a letter to Schuller, Spinoza distinguishes modes that follow immediately from an attribute — 'motion and rest' in extension, infinite intellect in thought — from a mediate one he calls the 'face of the whole universe' (facies totius universi): the total pattern of all bodies, which changes endlessly yet stays one same whole. These infinite modes bridge God's eternal nature and the finite things we meet, and appear nowhere else so plainly.

What is the difference between negation and privation?

This is the distinction Spinoza wields against Blijenbergh on evil. A privation is the lack of something a thing's nature demands; a negation is merely its not having what belongs to no such nature — a stone does not 'lack' sight. Evil, he argues, is only privation seen from our angle, nothing positive that God causes. From God's standpoint there is no privation: each thing has exactly the reality its cause gives it.

In what sense does Spinoza call God 'free'?

A thing is free, for Spinoza, not when it could have done otherwise but when it acts from the necessity of its own nature alone, compelled by nothing outside it. By this definition only God is wholly free — and free precisely because everything follows necessarily from its nature. 'Free' and 'necessary' are not opposites; the opposite of free is 'constrained.' The letters press him to make this exact, and he does.

What is the worm in the blood meant to show?

Answering Oldenburg on how a part relates to the whole, Spinoza offers a tiny worm living in the blood, seeing each particle as an independent whole and unable to grasp the body it serves. So with us and Nature: we take ourselves for self-standing wholes, but each thing is a part agreeing with the total order, its apparent disorder only our worm's-eye view of a larger harmony.

Themes of the book

What this book returns to, gathered into themes and ordered by how much of the text each one occupies.

A system defended in the open

What does a philosophy look like before it hardens into proof — while its author is still pressed on God, on evil, on how many things can flow from one substance? The letters catch the thinking in motion.

Across some fifteen years Spinoza answers Oldenburg on God and nature, Blijenbergh on the problem of evil, and Tschirnhaus on how the world's plurality can follow from a single substance — working out in the open what the Ethics would present as already demonstrated. The exchange shows determinism, divine nature, and necessity being questioned by sharp readers and repaired in reply. Cut by wary editors who dropped names and private matter, what survives is the one place he can be watched thinking rather than concluding.

epistemology
theology
metaphysics
ontology
methodology
ethics
determinism
necessity
imagination
attributes
definition
perfection
divine nature
substance
theodicy
truth
infinity
essence
existence
causation
free will

Enter a dialogue

Within this work

passages held: 198
distinct concepts: 362
by passages held, corpus-wide: #353

What this book thinks together

The wheel takes this book’s leading concepts and shows how often they come up together. The wider the band between two, the more of its passages speak of both. Among them, most often together: “free will” and “necessity”.

Concept co-occurrence, strongest first 8 concepts, joined by 15 pairings. 92 pairings reach beyond these concepts and are not drawn.
Concept	Paired concept	Shared passages
free will	necessity	5
causation	definition	4
causation	epistemology	4
causation	metaphysics	4
definition	epistemology	4
definition	metaphysics	3
epistemology	imagination	3
causation	free will	2
causation	imagination	1
causation	necessity	1
epistemology	metaphysics	1
epistemology	necessity	1
free will	theology	1
metaphysics	necessity	1
necessity	theology	1

Works held

The author's work in order, this book marked in place. Your-language title first, the original beneath it where the two differ; side chips show which full texts are held.

1663 The Principles of Descartes' Philosophy, with Metaphysical Thoughts (Renati Descartes Principiorum Philosophiae pars I et II, more geometrico demonstrata / Cogitata Metaphysica)
Begun as lessons for a private pupil and published in 1663 at his friends' urging, this Cartesian exposition — with its Cogitata Metaphysica appended — was the only work to carry Spinoza's name while he lived.
EN
1670 A Theologico-Political Treatise (Tractatus Theologico-Politicus)
Written in the years around 1670 to defend Dutch toleration and answer the Calvinist clergy, it was the one polemic Spinoza put into print — and its scandal is much of why the Ethics waited until after his death.
EN
1677 A Political Treatise (Tractatus Politicus)
Spinoza's last work, and the only one he wrote as a practical manual of governing; he was still at it, on the chapter about democracy, when he died in 1677.
EN
1677 Ethics, Demonstrated in Geometrical Order (Ethica Ordine Geometrico Demonstrata)
The work the others point toward: the finished system Spinoza spent some fifteen years building and never dared publish, where his God, his psychology, and his account of freedom are proved as a single chain of reasoning.
EN
1677 The Correspondence of Spinoza (Epistolae) you are here EN
1677 Treatise on the Emendation of the Intellect (Tractatus de Intellectus Emendatione)
Before the Ethics found its geometrical form, Spinoza sketched its theory of knowledge here and then abandoned the draft — one of his earliest surviving works, and one he left unfinished.
EN
1862 Short Treatise on God, Man and His Well-Being (Korte Verhandeling van God, de Mensch en deszelfs Welstand)
Composed around 1660 and shown only to Spinoza's friends, it is his earliest systematic work — the seed of the Ethics, and it stayed unpublished until a manuscript surfaced in the nineteenth century.
EN

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