Herbert Allen Giles,
The Civilization of China — Chapter X—Mings and Ch'ings…
“ In many respects the conquering Tartars have been themselves conquered by the people over whom they set themselves to rule. They have adopted the language, written and colloquial, of China; and they are fully as proud as the purest-blooded Chinese of the vast literature and glorious traditions of those past dynasties of which they have made themselves joint heirs. Manchu, the language of the conquerors, is still kept alive at Peking. By a fiction, it is supposed to be the language of the sovereign ”
