From the start, Hart was anxious to use such influence as he possessed in favour of other modernising steps. In October 1865 Hart submitted to Prince Gong a memorandum which caused some offence at the time. In it he advised that "f all the countries in the world, none is weaker than China" and outlined his proposals. A modern postal service and the supervision of internal taxes on trade were eventually added to the Service's responsibilities. Hart worked to persuade China to establish its own embassies in foreign countries. Earlier, in 1862, he had with the Manchu noble Prince Gong established the Tongwen Guan (School of Combined Learning) in Peking, with a branch in Canton, to enable educated Chinese to learn foreign languages, culture and science, for China's future diplomatic and other needs. (An early appointment to the school was the completely unsuitable 'Baron von Gumpach' (an assumed name) whose discharge led him to sue Hart in the British Supreme Court for China and Japan for defamation. In 1873, the case ultimately went to the Judicial Committee of the Privy Council "Hart v Gumpach" which upheld Hart's right to make the decision.) In 1902 the Tongwen Guan was absorbed into the Imperial University, now Peking University.