Baruch Spinoza

Baruch Spinoza was expelled from Amsterdam's Portuguese-Jewish community at twenty-three with a herem of unusual violence — cursed by day and by night, none permitted to come within four cubits of him — and never asked to return. He ground lenses for a living, declined a Heidelberg professorship to keep his independence, and died at forty-four leaving the Ethics in a desk drawer.

The Ethics (1677), written in the austere style of Euclid — definitions, axioms, propositions — argues that there is exactly one substance: God, or Nature (Deus sive Natura). Everything that exists is a mode of this one infinite substance; mind and body are the same reality under two attributes; nothing is contingent; free will is the dream of a stone in flight thinking it chose its arc. God, in Spinoza, does not plan, judge, love, or answer prayers — divine anthropomorphism is the projection of human hope onto necessity. Blessedness is the intellectual love of God: understanding necessity so thoroughly that the passions loosen their grip.

The Theological-Political Treatise (1670), published anonymously and promptly banned, founded modern biblical criticism: scripture is to be read like any ancient text, by history and philology; prophets excelled in imagination, not knowledge; miracles are events whose natural causes we ignore; and the state should tolerate all opinions since belief cannot be coerced.

For a century "Spinozist" meant "atheist" — Hume slyly called his view the "hideous hypothesis" — while Novalis called him "the God-intoxicated man." Both were pointing at the same thing: a piety without a person behind the curtain. Einstein, asked if he believed in God, answered: Spinoza's God. He remains the purest case of the pantheist alternative — the sharpest test of whether "God" can survive the loss of personality.