Asians did not develop science or mathematics as Greeks did. People here in Korea are still talking about ancient things while Galilleo and Newton solved problem hundred years ago. When a friend of mine read this book he cried, because of his long term ignorance of wisdom western tradition made and written in this book. Zhu Si asked his student study nature, exactly the kind of works Galilleo did, but they repeated those teaching without doing experiment. Cofucians are still teaching what Zhu Si said.