The Calas Affair: A Treatise on Tolerance

The Treatise on Tolerance on the Occasion of the Death of Jean Calas from the Judgment Rendered in Toulouse (Traité sur la tolérance) is a work by French philosopher Voltaire, published in 1763, in which he calls for religious toleration, and targets religious fanaticism, especially that of the Jesuits (under whom Voltaire received his early education), indicting all superstitions surrounding religions.