Leverage?

 So squabbling is good?

 

“Practitioners knew about the lever long before the development of scientific theory, pretty much since the origin of civilization,” Dr. Schiefsky said. At some point, theorists decided that the phenomena had to be explained. “It was an accident,” Jurgen Renn, a lead investigator for the Archimedes Project, said in a telephone interview from Berlin. “In China and Greece, you get many urban centers with vigorous debate. In China, the tradition dies out with Confucianism and the formation of empires. It is legitimized in the West by Aristotle.”