Baruch Spinoza

1632–1677 · Dutch (Portuguese-Jewish descent) · Early Modern Europe / Dutch Golden Age

Known for: Argued that God and Nature are the same thing — got excommunicated from Judaism and banned by Christians for it

Baruch (later Benedict) Spinoza was a Dutch philosopher of Portuguese-Jewish descent who developed one of the most radical philosophical systems in history. His Ethics, written in geometric proof format, argues that God and Nature are identical (Deus sive Natura), that free will is an illusion, and that understanding reality rationally is the highest form of human happiness. He was excommunicated (cherem) by Amsterdam's Jewish community at age 23 — one of the harshest bans in Jewish history.

He supported himself as a lens grinder while writing philosophy. His Theological-Political Treatise, published anonymously, argued for freedom of thought, democratic government, and the separation of church and state — revolutionary ideas that influenced the American and French revolutions. He died at 44, likely from lung disease caused by inhaling glass dust from his lens grinding.

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