The Age of Enlightenment, which has been edited by the renowned teacher, lecture, and writer, Sir Isaiah Berlin, presents the basic writings of the major eighteenth century philosopher and provides a brilliant commentary on their thoughts, times and impact on philosophy. The philosopher of eighteenth century tried to prove that everything or almost everything in the world moved according to unchangeable and predictable physical laws. Sir Isaiah extensive selections from the major works of Locke, Berkeley and Hume, as well as LaMettrie, Reid, Condillac and their German critics, shed lights upon this period when it seemed that philosophy might almost have been converted into a natural science.