"Jens Hoyrup deals forthrightly with the most important question now facing historians of science: what is the relation between ideas and socioeconomic life? His conclusions are persuasive and stimulating. They go a long way to refuting the currently fashionable relativist view that science has been nothing but a collection of prejudices, conventions, and practical compromises. In this book one finds a welcome social history of science composed by a philologically sophisticated, technically informed scholar." — Lewis Pyenson, Universite de Montreal