Entering the officialdom at the age of 23, Zhang Juzheng was an idealist with integrity. However, after experiencing the bloody court struggle, he painfully understood what politics was, and thus turning to the pragmatic road at all costs. As long as it was beneficial to achieve his political ideal of governance of the country, he did not care whether the approach was just, which made him the meanest man manipulating power in his enemies' eyes and the great hero saving the country in common people's eyes. Please open the book to see how Zhang Juzheng, the teacher of the emperor, used the most illiberal way to realize the most sacred ideal.