La Mettrie

Julien Offray de La Mettrie (1709–1751) was a French physician and philosopher whose work L'Homme Machine (1748) remains one of the most provocative and systematically misunderstood texts in the history of philosophy. La Mettrie argued that the human body is a machine — not a metaphorical machine, not a clockwork analogy, but a genuinely mechanical system whose operations can be understood through the same principles that govern levers, pulleys, and hydraulic systems. The book was condemned by the Church, burned by the public executioner, and forced La Mettrie into exile. It also established the conceptual foundation for what would become cognitive science, artificial intelligence, and the systems theory of mind.

L'Homme Machine: The Argument

La Mettrie's central claim is that the mind is not a separate substance from the body but an emergent property of the body's organization. He drew on his medical training, his observation of patients with brain injuries, and his reading of Descartes to argue that mental states are bodily states — that thought is a mechanical process no less than digestion or circulation. The famous opening sentence of L'Homme Machine — The