[2] A pioneering theorist of human rights in the Chinese context, Chang established his own small "Third Force" democratic party during the Nationalist era.
[4] Equipped with the traditional Confucian degree of xiucai or "accomplished scholar", Chang went on to study at Waseda University in Japan where he came under the influence of Liang Qichao's theory of constitutional monarchy.
In 1918 he accompanied Liang's tour of post-war Europe, later going to Germany to study philosophy for a short time at Berlin University.
In 1933 he and Huang Yanpei organized the China Democratic League, a Third Force party with strong commitments to liberal doctrines of separation of powers, freedom of expression and human rights.
[6] Opposed to the Chinese communists, but also dissatisfied with Chiang Kai-shek's noncompliance with the constitution, Carsun Chang went to the United States after 1949.