'We should think of all human beings as our brothers. What? A Turk as a brother? A Chinaman as a brother? Jews and people from Siam as brothers too? Yes, without doubt, for are we not all children of the same Father and creatures of the same God?' A powerful, impassioned case for the values of freedom of conscience and religious belief, Voltaire's Treatise on Toleration was written after the Toulouse merchant Jean Calas was falsely accused of murdering his son and executed on the wheel in 1762. As it became clear that Calas had been persecuted by 'an irrational mob' for being a Protestant, the Enlightenment philosopher Voltaire began a campaign to vindicate him and his family. The resulting work, a screed against fanaticism and a plea for understanding, is as fresh and urgent today as when it was written.
François-Marie Arouet, better known by the pen name Voltaire, was a French Enlightenment writer and philosopher famous for his wit and for his advocacy of civil liberties, including freedom of religion and free trade. Voltaire was a prolific writer and produced works in almost every literary form including plays, poetry, novels, essays, historical and scientific works, more than 20,000 letters and more than 2,000 books and pamphlets. He was an outspoken supporter of social reform, despite strict censorship laws and harsh penalties for those who broke them. As a satirical polemicist, he frequently made use of his works to criticize intolerance, religious dogma and the French institutions of his day.
Voltaire was one of several Enlightenment figures (along with Montesquieu, John Locke and Jean-Jacques Rousseau) whose works and ideas influenced important thinkers of both the American and French Revolutions. ([Source][1])
[1]: http://en.wikipedia.org/wiki/Voltaire
