The use of isoquants to describe the production function did not develop to any great extent until the thirties.
Kenneth E. BouldingThe very act of thinking about power in our lives and experiences creates a process of revelation and self-analysis that may even make us look at ourselves in a new light... thinking about power and its complex manifestations may not simply lead to a better understanding of the abstract complexities of society, but may have an effect on one?s own image and identity. Perhaps a warning label should be placed on the cover.
Kenneth E. Boulding