p. 264–265: At any event, while world alienation determined the course and the development of modern society, earth alienation became and has remained the hallmark of modern science. Under the sign of earth alienation, every science, not only physical and natural science, so radically changed its innermost content that one may doubt whether prior to the modern age anything like science existed at all. This is perhaps clearest in the development of the new science's most important mental instrument, the devices of modern Algebra, …