In these brilliant lectures Berlin surveys the myriad attempts to define Romanticism, distills its essence, traces its developments from its first stirrings to its apotheosis, and shows how its lasting legacy permeates our own outlook. Combining the freshness and immediacy of the spoken word with Berlin’s inimitable eloquence and wit, the lectures range over a cast of the greatest thinkers and artists of the eighteenth and nineteenth centuries, including Kant, Rousseau, Diderot, Schiller, Schlegel, Novalis, Goethe, Blake, Byron, and Beethoven. Berlin argues that the ideas and attitudes held by these and other figures helped to shape twentieth-century nationalism, existentialism, democracy, totalitarianism, and our ideas about heroic individuals, individual self-fulfillment, and the exalted place of art. This is the record of an intellectual bravura performance–of one of the century’s most influential philosophers dissecting and assessing a movement that changed the course of history. These Mellon lectures were delivered in Washington in 1965.