Julien Offray de La Mettrie

Born in Saint-Malo in 1709, he trained as a physician in Paris and at Rheims, then continued his studies at Leiden under the influential doctor Hermann Boerhaave. That medical background shaped the way he approached philosophy: he wrote about the human mind and body as parts of a single natural system rather than separate realms.

He is best known for L’Homme machine (Man a Machine, 1747), a work that made him notorious for its frank materialism. Britannica describes him as a French physician and philosopher whose materialist account of mental life played an important role in the history of modern materialism, and reference sources also connect his work to the wider current of Enlightenment debate about science, psychology, and human nature.

His ideas drew fierce criticism, and he spent part of his later life outside France. He died in Berlin in 1751, but his writings continued to stand out for their sharp, provocative challenge to religious and philosophical orthodoxies.