Abstract

Voltaire's militancy in favor of religious toleration is well-known. But he seems to be concerned by its practical results, the rehabilitation of those religiously persecuted,  rather than by the theorectical reasonings to convince his opponents. That can be seen in the few importance given to argumentation in the Traité sur la tolerance , mostly composed by historical examples of violence caused by religious fanaticism. However, in Voltaire we find real philosophical reflection on tolerance, but the author finds it inneficient to convince his contemporaries, who are more inclined to accept the presentation of matters of fact rather than the discussion of matters of right. But Voltaire does not limit his comments to facts, he knows that philosophy and law have something to say about tolerance, and that theory influences on and is influenced by practices. So that Voltaire's reflections on tolerance are not limited only to practical positions adopted to defend some individuals from religious persecution, his positions have to be understood also at its theorectical level, for at this level he is also original and gives no concessions, which separates him from his English masters such as John Locke