Voltaire
(November 21, 1694 - May 30, 1778)François-Marie Arouet, better known by the pen name Voltaire, was a French Enlightenment writer, historian and philosopher famous for his wit and for his advocacy of civil liberties, including freedom of religion, free trade and separation of church and state.
Montesquieu
(January 18, 1689 - February 10, 1755)Charles-Louis de Secondat, baron de La Brède et de Montesquieu, generally referred to as simply Montesquieu, was a French social commentator and political thinker who lived during the Enlightenment.