“Quand celui à qui l'on parle ne comprend pas et celui qui parle ne se comprend pas, c'est de la métaphysiqueWhen he to whom a person speaks does not understand, and he who speaks does not understand himself, that is metaphysics.”

French Enlightenment writer and philosopher of the 18th century, he is best known for his wit and sharp critiques of religious intolerance and absolutism. His works, including *Candide* and *Treatise on Toleration*, remain influential for their blend of satire and philosophical inquiry.