Tu Shih was a governor of Nanyang who invented “a water-powered blowing-engine for the casting of iron agricultural implements”(Doc 4). This device greatly reduced the working hours for the workers under the Han government. Doc 4 illustrates a good emperor, such as Tu Shih, who not only maintained the productivity of economy but also improved the working condition for his common people. This document suggests that Han Dynasty approached technology carefully so that bottom civilians would not have to suffer. Although generally Han Dynasty promoted equality and showed generous behaviors for working class, the government still had a problem. According to Doc 2, written by a Han government official, the government became the monopoly in making tools for foundry work and salt-boiling. They set the price for the tools very high and started to favor quantity over quality. Workers, who no longer could afford these tools, often had to use wooden, fragile plows to soil. In this document, the most important thing to highlight is the author’s position. Huan Guan was a Han government official and ironically he still mentioned about the problems