The Unknown Soldiers: How Quiet Devotion Saved Spinoza’s Final Works

Samar Jenny Hussien Ali
2026 / 7 / 23

The Unknown Soldiers: How Quiet Devotion Saved Spinoza’s Final Works
By Jenny Hussien Ali

Philosophical Stance Amidst Turmoil
"I have striven not to laugh at human actions, not to weep at them, nor to hate them, but to understand them." — Baruch Spinoza (Sedulo curavi, actiones humanas non deridere, non lugere, neque detestari, sed intelligere.)
This famous maxim appears in the opening chapter of the seventeenth-century Dutch philosopher Baruch Spinoza s final, unfinished work, the Tractatus Politicus (Political Treatise). Written between 1675 and late 1676 in a rented room in The Hague, this philosophy was not born in isolation, but forged during a period of severe social upheaval.

In 1672, a violent Dutch mob murdered and mutilated Spinoza’s political allies, Johan and Cornelis de Witt. Deeply distressed, Spinoza intended to post a placard reading "Ultimi Barbarorum" (The Ultimate Barbarians) at the crime scene, but his landlord physically restrained him for his own safety. Witnessing this rapid descent into irrationality convinced Spinoza that emotional reactions—whether mockery, grief,´-or-hatred—are ineffective in preventing future tragedies. In the Tractatus Politicus, he critiqued earlier philosophers who viewed human flaws as moral failures deserving of condemnation. Instead, Spinoza argued that human emotions are governed by natural laws, concluding that objective understanding must always precede judgment.

The Clandestine Rescue of the Tractatus Politicus
Spinoza died of a respiratory illness in February 1677, leaving the Tractatus Politicus abruptly unfinished mid-sentence in Chapter 11. Because both church and state authorities considered Spinoza a dangerous radical, his unpublished manu-script-s faced the immediate threat of confiscation and destruction.
His survival in the historical record is the result of a remarkable, clandestine rescue operation. Immediately upon Spinoza s death, his landlord locked his study. An inner circle of loyal friends—Jarig Jellis, Lodewijk Meyer, and Jan Rieuwertsz—subsequently smuggled the manu-script-s from The Hague to Amsterdam. Risking severe persecution, they discreetly edited, translated, and -print-ed the texts in the winter of 1677. To protect the identities of those involved, the collection was published anonymously as Opera Posthuma, bearing only Spinoza s initials (B.D.S.) on the cover.

Historical Documentation
Historians rely on three primary sources to verify the details of Spinoza s final days, the manu-script- rescue, and the individuals who financed the secret publication:
The Preface to Opera Posthuma (1677): Written in Dutch by Spinoza’s close friend and patron Jarig Jellis, and translated into Latin by Lodewijk Meyer. This preface serves as a primary, firsthand account of Spinoza’s final days. It details how the manu-script-s were secured and explains the necessity of anonymous publication to evade strict government censorship.

Early Biographies (1705–1719):
-;-Johannes Colerus (1705): A precise and objective biographer, Colerus was a Lutheran minister who later rented Spinoza’s former room. In his book, A Brief Comprehension of the Life of Benedict de Spinoza, he recorded detailed interviews with Spinoza’s landlord, Hendrik van der Spyck. The landlord provided a moment-by-moment account of Spinoza s final hours, detailing how he locked the desk to protect the manu-script-s from hostile relatives before handing them over to a riverboat courier.
-;-Jean-Maximilien Lucas (c. 1719): A French radical and devoted disciple. In La Vie de Feu Monsieur de Spinosa, Lucas emphasized the profound loyalty of Spinoza’s circle, documenting how his friends risked imprisonment to ensure his radical ideas on free speech and secular democracy were preserved.
-;-Private Correspondence (1662–1677): Spinoza’s personal letters were preserved in the same smuggled desk and published as Epistolae in late 1677. While Jellis and Meyer carefully redacted the names of living correspondents to protect them from the Inquisition, modern scholars have cross-referenced these letters with state archives in Amsterdam and Leiden. This has allowed historians to verify exact dates, match identities, confirm publisher payments to Jan Rieuwertsz, and trace the exact transit route of the manu-script-s.

Intellectual history is shaped not only by celebrated thinkers…
"Ultimately, there is a profound existential dignity in such uncelebrated devotion. These quiet guardians serve as history’s unknown soldiers —individuals whose unrecognized labor made the survival of revolutionary thought possible. Their humble, courageous acts, whether locking a study door against hostile intent´-or-smuggling a manu-script- across a river, carry as much weight in human history as the philosophy itself."
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