<i>The Roots of Romanticism</i> is the long-awaited text of Isaiah Berlin''s most celebrated set of lectures, the Mellon Lectures, delivered in Washington in 1965 and heard since by a much wider audience on BBC radio. For Berli, the Romantics set in train a vast, unparalleled revolution in humanity''s view of itself. They destroyed the traditional notion of objective truth in ethicsm with incalculable, all-pervasive results. In his unscripted <i>tour de force </i>Berlin surveys the myriad attempts to define romanticism, distils its essence, traces its development, and shows how its legacy permeates our outlook today.