The Last Teacher George L. Fearns

Jon Bradburn, a former air traffic controller at England's Manchester Airport, is picked up by aliens from the planet Zel. After interrogation, he is persuaded to become a "teacher of men." It's become obvious to the Zellians that humankind is nearing the point where self-destruction is imminent, consuming Earth in atomic warfare. Jon is the last in a long line of "teachers" provided by the Zellians, being "prepared and modified" mentally and physically for the role he will have to play. He is endowed with superhuman strength and intelligence, as well as the promise of longevity beyond that of all men. Accompanied by a young female Zellian (only eighty years old) named Lana, who will be Jon's mentor and companion until the stability of Earth is assured, Jon sets out to educate the men of all nations how to live in peace. But first all nuclear weapons must be disabled or destroyed. As the teacher, Jon is in contact with the most powerful leaders in the world, particularly Davis... Это и многое другое вы найдете в книге The Last Teacher (George L. Fearns)