Baruch Spinoza

Baruch Spinoza was born Bento de Espinosa on 24 November 1632 in Amsterdam, into a family of Portuguese Jewish descent that had fled the Iberian Inquisition to settle in the Dutch Republic, one of the few places in seventeenth century Europe offering meaningful religious toleration to openly practicing Jews. He was raised and educated within Amsterdam's Portuguese-Jewish community, but by his early twenties had developed philosophical positions serious enough to alarm its leadership.

On 27 July 1656 the community's leaders issued a writ of herem, formal excommunication, against the twenty three year old Spinoza, citing vague references to horrible heresies and abominable heresies without specifying their exact content in the surviving document, itself an unusual omission historians have long debated. It was, by every account, the harshest ban that community had ever pronounced against one of its own members, permanently cutting Spinoza off from Jewish communal life; it was never rescinded, though a symbolic modern effort to lift it was debated in Amsterdam more than three centuries later. Spinoza spent the rest of his life outside organized religious community, earning a living as a lens grinder and dying in The Hague on 21 February 1677.

Spinoza published the Tractatus Theologico-Politicus anonymously in 1670, fourteen years after his excommunication, arguing at length that religious and political authority ought to be kept strictly separate and that the Bible should be read and interpreted using the same historical and philological methods scholars applied to any other ancient text, rather than being treated as immune from ordinary critical inquiry. He argued that biblical accounts of miracles and supernatural events could generally be explained through natural causes combined with the limited understanding of the people who originally reported them, treating scripture as a human document shaped by specific historical circumstances rather than a direct, unmediated transmission of divine truth.

The book caused immediate scandal, was formally banned in the Dutch Republic within a few years of publication, and is regarded by historians of philosophy, including Steven Nadler, as one of the founding texts of both modern secular biblical criticism and modern liberal political theory, arguing for freedom of thought and expression on explicitly philosophical rather than merely tactical grounds. Spinoza's broader philosophical system, most fully developed in his posthumously published Ethics, identified God with Nature itself, a form of pantheism that placed him, alongside his excommunication and his Tractatus, among the most consequential and controversial religious thinkers of the early modern period.