Science came into Guy Stever's life as a pure and peaceful pursuit. It was only later, as he walked through the wreckage of wartime London that he began to see science as central to a desperate struggle to survive. Past president of Carnegie Mellon University, former Chief Scientist of the US Air Force, one-time Director of the National Science Foundation, professor at MIT for 20 years, member of the National Academies of Sciences and Engineering, and science advisor to two presidents, Guy Stever was a central figure in 20th century science - consistently on the front lines, changing the fate of a nation. In this candid memoir, Stever recounts an extraordinary life that reveals as much about the man as about the major scientific and techlogical events of his day. Born of humble origins and orphaned at an early age, Stever journeyed from a small town in New York to work alongside British comrades who were developing and refining the critical radar techlogy that was to turn the tide of the war against the Germans. As a technical intelligence officer, these harrowing wartime years took him from the beachheads of Normandy to the German slave-labour factories responsible for building the V-2 rockets. Stever returned home committed to serving his country. He became intimately involved in America's nascent guided missile programme - and was to remain a key player in the anti-ballistic missile defence programme that heralded the era of the Cold War. As the decades passed, Stever continued to exert lasting influence on countless scientific endeavors. He was instrumental in the formation of new institutions, from the creation of NASA in the post-Sputnik years to the merging of Carnegie Tech and the Mellon Institution, giving birth to Carnegie Mellon University. As Presidential Science Advisor to both Nixon and Ford, Stever shaped the very structure of contemporary presidential science advising. And he was to chair the oversight committee that redesigned the space shuttle boosters after the Challenger explosion.