His Life, Character, and Philosophy

A religious fanatic slashes Spinoza’s cloak outside Amsterdam’s Portuguese Synagogue. Spinoza kept the torn cloak for the remainder of his life.

Baruch Spinoza transformed Western philosophy with his radical ideas on God, freedom, and the nature of reality, inspiring thinkers from Goethe and Hegel to Einstein. Yet the man who identified God with nature was denounced as a heretic, excommunicated by his own community, and earned his living grinding lenses in rented rooms. Few philosophers have lived so quietly while thinking so dangerously.

Steeped in Descartes

When Descartes died, Baruch Spinoza (also known, after his excommunication, as Benedict, or Benedictus, de Spinoza) was seventeen years old.

Growing up in Amsterdam, he became familiar with the philosophy of Descartes—to the extent that, until 1660, he supported himself by giving private lessons in Cartesianism.

In fact, he became, as far as method is concerned, more thoroughly Cartesian even than Descartes. His Principles of Cartesian Philosophy, published in 1663, is a reconstruction of Descartes’s Principles of Philosophy in the formal deductive format of Euclid’s geometry, complete with definitions, axioms, and theorems. It succeeded not only in recasting Descartes’s system, but also in clarifying, refining, and, finally, undermining it.

Given its merits, Spinoza held on to the geometric method for his magnum opus, the Ethics [Ethica, ordine geometrico demonstrata]. Its geometric method provided Spinozism with added curiosity and credibility, and, to an extent, still does.

Freedom in the Dutch Republic

Like Descartes before him, Spinoza enjoyed relative freedom in what has retrospectively been called the Dutch Republic (formally, the Republic of the Seven United Netherlands; informally, the United Provinces), then in its golden age and the most liberal, and richest, place in Europe.

In the preface to his Tractatus Theologico-Politicus (TTP, 1670), Spinoza eulogises his country and its constitution:

Now since we have the rare good fortune to live in a commonwealth where freedom of judgement is fully granted to the individual citizen and he may worship God as he pleases, and where nothing is esteemed dearer and more precious than freedom, I am undertaking no ungrateful or unprofitable task in demonstrating that not only can this freedom be granted without endangering piety and the peace of the commonwealth, but also the peace of the commonwealth and piety depend on this freedom.

In the TTP, Spinoza critically analyses the Bible and argues for the establishment of a secular state founded on toleration. His purpose in critiquing the Bible is to undermine the repressive theological and political order of the era. ‘The purpose of the state’ he concludes, ‘is freedom’—a maxim far ahead of its time, and inscribed on the pedestal of his monument in Amsterdam.

Merchant or Philosopher?

For all its freedoms, life in Amsterdam had not been a bed of tulips. Spinoza’s paternal grandfather Isaac, a Portuguese Jew, had fled the Iberian Inquisition. In the early 1630s, his father Miguel and uncle Abraham moved the family business from Rotterdam to Amsterdam, where Baruch was born. Had the firm not been bankrupted, essentially, by the First Anglo-Dutch War, Spinoza might have continued as an importer of fruits, nuts, and wine.

Attempted Assassination and Excommunication

In April 1655, on the steps of Amsterdam’s Portuguese synagogue, a knife-wielding fanatic attempted to assassinate Baruch, shouting, ‘Heretic!’ Fortunately, the assassin succeeded only in slashing his cloak, which he kept as a memento of the dangers of fanaticism. 

A year later, on 27 July 1656, in his twenty-fourth year, his Jewish community expelled him for his freedom of mind. His excommunication order decried his ‘abominable heresies’ and ‘monstrous deeds’: ‘By the decree of the angels, and by the command of the holy men, we excommunicate, expel, curse and damn Baruch de Espinoza…’

Cursed be he by day and cursed be he by night; cursed be he when he lies down, and cursed be he when he rises up; cursed be he when he goes out, and cursed be he when he comes in. The Lord will not spare him; the anger and wrath of the Lord will rage against this man, and bring upon him all the curses which are written in this book, and the Lord will blot out his name from under heaven, and the Lord will separate him to his injury from all the tribes of Israel with all the curses of the covenant, which are written in the Book of the Law.

The sting, however, came in the tail, banning all members of his community, including close family, from engaging with him: ‘We order that no one should communicate with him orally or in writing, or show him any favour, or stay with him under the same roof, or within four ells [around four metres] of him, or read anything composed or written by him.’

In a tradition going back to Socrates and Plato, he wrote (but did not publish) an ‘apology’, or defence. Although the work has been lost, he incorporated its contents into later works, especially the TTP—which a viral pamphlet described as, ‘forged in Hell by a renegade Jew and the Devil…’ 

Some time after his excommunication, he adopted the motto Caute [Take care] and had it engraved on his signet ring along with a thorny rose (‘Spinoza’ derives from the Latin spinosus, ‘thorny’).

Life as a Castaway

After his excommunication, Spinoza boarded in rented rooms in other people’s houses, in Amsterdam, in Rijnsburg near Leiden, in Voorburg, and finally in The Hague.

Those who knew him were struck by his simplicity, courtesy, and quiet contentment. He lived so frugally that his daily meals often consisted of little more than bread, milk, raisins, and a little butter. In his spare moments, he watched spiders weave their webs and observed flies under his microscope.

In Rijnsburg, under the influence of Descartes, he wrote the unfinished Treatise on the Emendation of the Intellect, on knowledge and method and the purification (or ‘emendation’) of the intellect.

This work on ‘thinking skills’ opens with a sentence that could have been written by Seneca or some other Stoic:

After experience had taught me the hollowness and futility of everything that is ordinarily encountered in daily life, and I realised that all the things which were the source and object of my anxiety held nothing of good or evil in themselves save insofar as the mind was influenced by them, I resolved at length to enquire whether there existed a true good, one which was capable of communicating itself and could alone affect the mind to the exclusion of all else—whether, in fact, there was something whose discovery and acquisition would afford me a continuous and supreme joy to all eternity.

For fear of compromising his freedom, Spinoza rejected a stipend from a patron and a professorship at Heidelberg, to eke out a living by grinding lenses—including for Huygens, who, in 1667, wrote to his brother, ‘The [lenses] that the Jew of Voorburg has in his microscopes have an admirable polish.’

He should have taken the stipend: the inhalation of glass dust led to his death in 1677, at the age of forty-four, from silicosis.

In the months preceding his death, the thirty-year-old Leibniz, as if acting on a premonition, travelled to The Hague and spent several days in conversation with him—in arguably the greatest meeting of minds since Plato and Aristotle.

The God of the Ethics

Spinoza’s masterpiece, The Ethics, completed in 1675 and published posthumously in 1677, consists of five parts.

The first part, Concerning God, contains an ontological proof, founded on his necessary perfection, for the existence of God, not dissimilar to the one deployed by Descartes. 

Departing from Descartes, Spinoza argues that God is not beyond the world but at one with it. Propositions 14 and 15 state, ‘No substance apart from God can exist or be conceived,’ and, ‘Whatever exists, exists in God, and nothing can exist or be conceived without God.’ This lack of a distinction between the Creator and his creation is encapsulated in the slogan, Deus sive natura, ‘God, or nature.’

Many contemporaries understood Spinoza to be an atheist, although later Romantics interpreted him rather as a pantheist. The Romantic poet Novalis (1772-1801) famously referred to him as ein Gottbetrunkener Mensch, ‘a God-intoxicated man.’

The Mind-Body Problem

Whereas, starting from an ontological argument, Descartes had argued that at least one thing exists, and that that one thing would not deceive us, Spinoza had argued that at most one thing exists, and that that one thing is everything, including us.

For Spinoza, you and I have no independent existence outside of God; we are not substances, but modes of God, who is the one and only substance.

God has infinitely many attributes, but we can only know two of them, namely, thought and extension. Spinoza’s answer to the mind-body problem is thus to deny that there is a problem: thought and extension, that is, mind and body, are two ways of apprehending the same reality.

Mind and body do not interact, or even correlate, but simply correspond, like the two sides of a same coin.

Freedom

God being eternally and necessarily as he is, things could not be otherwise. Everything follows from God’s essence and prior causes. This being so, nothing is intrinsically good or evil; ‘good’ and ‘evil’ are simply subjective judgements as to what may be helpful or harmful to our survival.

Freedom, too, is a construct of the human mind. People think that they have free will because they cannot grasp the complex concatenation of infinite causes that determines their every thought and action. Freedom is not the ability to do otherwise, but the capacity to comprehend reality as if outside of time and subjectivity, sub specie aeternitatis, under the aspect of eternity, in the manner of a geometrical proof.

Freedom, in other words, is knowledge, which leads to tranquillity and virtue, is blessedness, and can only be achieved in the secular state.

Immortality

There is no afterlife or personal immortality, because there is no person. But the human mind is capable of grasping eternal truths and, in so doing, participates in something that transcends the individual. If we can bring ourselves to see the world sub specie aeternitatis and share in the eternal mind of God, we achieve a kind of immortality.

Appraisal

As I said, Spinoza has been read by some as an atheist and by others as a pantheist. I see in his Ethics many parallels with Stoicism, Paganism, and, above all, Hindu Vedanta. As per the Chandogya Upanishad, ‘When a man knows the best and the greatest, he becomes the best and the greatest.’

Both ancient and remarkably modern, Spinoza stood completely outside, or beyond, his time. While we may debate the nature of his God, we cannot doubt what he, or it, is not, namely, the God of the Bible—and wonder whether Spinoza’s metaphysics derives, in fact, from his politics.

When asked whether he believed in God, Einstein replied, ‘I believe in Spinoza’s God who reveals himself in the orderly harmony of what exists, but not in a God who concerns himself with the fates and actions of human beings.’

Whereas Descartes, with his vain attempts at resolving the mind-body problem, had struggled to salvage received religion from the trainwreck of the Scientific Revolution, Spinoza did his utmost to overturn it.

The metaphysics of Leibniz, who almost literally picked up the torch from the dying Spinoza, may be read as an attempt to solve the mind-body problem while preserving, rather than overturning, the status quo ante.

Continue Exploring

If you enjoyed this article, you might also enjoy my book The German Greeks, an accessible overview of the German philosophers who responded to Descartes and Spinoza and the challenges posed by the Scientific Revolution.

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