books.google.com - Carl Friedrich von Weizsäcker s 'Aufbau der Physik', first published in 1985, was intended as an overview of his lifelong concern: an understanding of the unity of physics. That is, the idea of a quantum theory of binary alternatives (the so-called ur-theory), a unified quantum theoretical framework...http://books.google.com/books/about/The_Structure_of_Physics.html?id=DeexONN0zDgC&utm_source=gb-gplus-shareThe Structure of Physics