Bergman argues that the Soviet human rights movement, as exemplified by the life and career of the physicist and Nobel Peace Prize Laureate Andrei Sakharov,exerted a key role in undermining the political and moral authority of the Soviet regime.... Bergman tells this story well, providing an account that is far more comprehensive and insightful than an earlier biography by Richard Lourie (2002) that relied too heavily on Sakharov's own memoirs. Bergman also does a clear and credible job of explaining Sakharov's work as a physicist and his outstanding contributions to cosmology, including theoretical studies of baryon asymmetry and proton decay. Sakharov did not emerge out of nowhere. As Bergman relates in some detail, the 'vocational autonomy he enjoyed as a physicist permitted him and his colleagues to discuss virtually anything... with impunity,' including George Orwell's Nineteen Eighty-Four (1949) at a time when such works were strictly banned.- Joshua Rubenstein (American Historical Review) Bergman's special achievement is to have meticulously traced and chronicled Sakharov's thinking both as a scientist and as a man of conscience, documenting from letters, interviews, official files, and diverse press and journal articles the incremental ideas that led him to brilliant physics and then to sacrificial public activism. In Bergman's view, Sakharov personified the 'moral wholeness' that was pervasive among the Russian intelligentsia, 'the belief that the moral principles a person espouses must be applied to every aspect of his life.'... In this biography, we make intimate acquaintance with a rare and profound genius.- William Lanoue (Issues in Science and Technology) In this biography of Andrei Sakharov, Bergman introduces a figure who transcends Russian history. Sakharov's faith in reason, originally limited to the sphere of nuclear weapons, gradually acquired a moral sensibility stirred by the ethical implications of testing these weapons in the atmosphere, a step that led to a far more profound concern with the whole sphere of human rights. Bergman opens Sakharov's mind to the reader and illustrates how Sakharov bonded reason with ethics and applied ideas not only to an astonishing range of technical scientific subjects but also, ultimately, to matters of human freedom and world peace.- Robert Legvold (Foreign Affairs) Whether it was working on the hydrogen bomb, defending human rights, thinking about arms control or trying to write a new Soviet constitution, Sakharov brought a problem-solving mind and an enduring ability to think 'outside the box' to the matter at hand. This is perhaps the central insight of Jay Bergman's magnificent study of Sakharov, a work that must rank as one of the most important biographies written about a Soviet intellectual in recent years.- Philip Boobbyer (Slavonic and East European Review) While dwelling on the development of Sakharov's ideas, including their gradual radicalization, Bergman also pays attention to his life as a physicist of great distinction.... Jay Bergman has produced a fitting tribute to a scientist and political activist whose commitment to the defense of individual rights was marked by great constancy of purpose, heroic stubbornness, and true grit.- Archie Brown (Times Literary Supplement)