"The hallmarks are impeccable detail and clarity...The copious footnotes, for example, generally refer to original manuscripts, letters and memoranda that are out of reach of most students and scholars. The superb quality of this book promises to give it a prominent place in the modern scholarly literature about Isaac Newton." David L. Heiserman, Science Books & Films
"Although there have been other biographies of Newton in the past, this is the first one to be based on an extensive use of the manuscript sources. It is more than merely the biography of a man and an account of the development of his ideas. It is a fundamental resource work on the Scientific Revolution, a work that should be on the shelves of every scholar interested in the main currents of ideas of the seventeenth century or any aspects of the early history of modern science." American Historical Review
"...this biography is to be applauded and recommended...we must all read Westfall's biography and admire it..." Eighteenth-Century Studies
"...fills a decided gap in modern history of science and stands in the very first rank of our advancing understanding of one of the world's greatest geniuses...we must all owe an incalculable scholarly debt to this outstanding book. Westfall's confrontation with Newton's manuscripts, an act of historical integrity that involved sustained and arduous labour for many years, opens up dimensions of Newton's restless genius which we had never before suspected." Ambix
"This must be one of the best biographies ever penned." Spaceflight
"Here at last is a Newton in whom we can believe...In short, this is as complete a biography as modern scholarship can provide." The Observatory
"No private library of an educated person should be without it on the shelf." Industrial Mathematics
Destined to become the standard biography of Isaac Newton, this meticulously detailed work is focused on his scientific career, but also deals with every facet of his life. It presents an encompassing picture of Newton--the man, scientist, philosopher, theologian and public figure.