
Denis Diderot was a French philosopher and chief editor of the Encyclopédie, one of the defining projects of the Enlightenment. An atheist and materialist, he believed knowledge and reason were tools for social progress and human emancipation.
Diderot's philosophical fiction — Rameau's Nephew, Jacques the Fatalist — explored questions of determinism, morality, and social hypocrisy with a dialogic openness that anticipated later forms of philosophical writing. The Encyclopédie itself was a monumental effort to organise human knowledge and challenge religious authority.