In the period covered here Isaiah Berlin creates Wolfson College, Oxford; John F. Kennedy becomes U.S. President (and is assassinated); Berlin dines with JFK on the day he is told of the Soviet missile bases in Cuba; the Six-Day Arab-Israeli war of 1967 creates problems that remain with us today; Richard M. Nixon succeeds Johnson as President and resigns over Watergate; and the long agony of the Vietnam War grinds on in the background. At the same time Berlin publishes some of his most important work, including Four Essays on Liberty--the key texts of his liberal pluralism--and the essays later included in Vico and Herder. He appears on the radio, on television, and in documentary films, and gives numerous lectures, especially his celebrated Mellon Lectures, later published as The Roots of Romanticism. Behind these public events is a constant stream of gossip and commentary, acerbic humor, and warm personal feeling. This new volume leaves no doubt that Berlin is one of the very best letter-writers of the 20th century.