The French Enlightenment's Spirit of Tolerance Brought to Life
Any review of this book would have to start out by defining how "toleration" is defined by Voltaire, at least in the context of the essays contained in this book. That is religious toleration, not political, intellectual, scientific, social or any other sense. This is quite a shame as Voltaire has written many very impressive and persuasive essays on these forms of tolerance too. Many of these are among the best essays existing, at least on these in this reviewer's opinion, on the topics. Considering however that the French Religious wars left countless dead and devastated large parts of the country, hence leaving a serious mark on that nation’s psyche, this concentration by Voltaire on religious toleration is perfectly understandable.
In the essay "A Treatise on Tolerance" he draws two conclusions. He writes, of the first (p. 165): "Toleration, in fine, never led to civil war; intolerance has covered the earth with carnage. Choose, then, between these rivals- between the mother would have her son slain and the mother who yields, provided his life is spared". The second (p.185), in his own words: "I say it with a shudder, but it is true; it is we Christians who have been the persecutors, the executioners, the assassins. And who were our victims? Our brothers. It is we who have destroyed a hundred towns, the crucifix or Bible in our hands, and have incessantly shed blood and lit flames from the reign of Constantine to the fury of the cannibals of the Cevenes".
The book, as well as containing his famous essay "A Treatise on Tolerance" (as stated above concentrating on religious toleration), contains a number of essays critical of the clergy, nearly every established religions and, simultaneously and ironically, a defense of theism (one of the best this reviewer has seen over the course of a lifetime). These essays are "critical" not only in the intellectual sense but also make very eloquent use of satire and mockery, something that Voltaire was so skilled at. However, despite this satire, mockery and critical thought, the essays are underlied by a very deep spirit of tolerance (again, religious). For example, in his essay "Homily on the Interpretation of the Old Testament” he writes (p. 135):
"Let us set aside all the subjects of contention which divide nations and fill ourselves with the sentiments which unite them. Submission to go, resignations, justice, kindness, compassion and tolerance-those are the great principles. May all the theologians of the earth live together as men of business do. Asking not of what country a man is, nor in what practices he was reared, they observe towards each other the inviolable rules of equity, fidelity, and mutual confidence; and by these principles they bind nations together. But those who know only their own opinions and condemn all others; those who think that the lights shine for them alone, and all other men walk in darkness; those who scruple to communicate with foreign religions, should surely be entitled enemies of the human race."
Voltaire's views on religious tolerance summed up very well the meaning of the French Enlightenment as well as making clear his influence on it.