W. A. P. Martin, The Awakening of China
“ So deep an impression has this historical generalisation made on the public mind that if the empire were now to be divided between foreign nations, as it has been more than once, the people would confidently expect it to be reintegrated under rulers of their own race. The undivided Sung dynasty held sway from 960 to 1127; that of the southern Sungs from 1127 to 1280. The founder of the house was Chao-kwang-yun, an able leader of soldiers and an astute politician. So popular was he with his troops that they called him to the throne by acclamation. ”
