Abstract
"The 'new' often consists not in the invention of new categories of thought but rather in surprising employment of existing ones". The book proves this thesis, in an ingenious manner, as far as the origins of modern science are concerned. For a contemporary historian of science, the idea that the sciences had their roots in philosophical and theological thinking of the Middle Ages is hardly a surprise, but to know exactly how this did happen makes a profound difference. The book is not based on new texts or new findings in the history of science--the author calls it "an interpretative essay only"--but it offers a deep insight into the evolution of concepts and ideas. The reader, under the author's guidance, can trace some evolutionary paths in a very detailed manner. In spite of being "an interpretative essay," it is the solid work of a historian.