A humanist, a sceptic, an acute observer of himself and others, he reflects the great themes of existence through the prism of his own self-consciousness. Apparent in every line he wrote, his virtues of tolerance, moderation and disinterested inquiry amount to an undeclared manifesto for the Enlightenment, whose prophet he is. This complete edition of his works supplements the Essays with travel diaries and letters, thereby completing the portrait of a true Renaissance man.