" inner courtyard. Dr. Xia tolerated Yu-wu’s rowdy parties without demur, even though his sect, the Society of Reason, forbade gambling and drinking. My mother was puzzled, but put it down to her stepfather’s tolerant nature. It was only years later when she thought back that she felt certain that Dr. Xia had known, or guessed, Yu-wu’s real identity. When my mother heard that her cousin Hu had been killed by the Kuomintang she approached Yu-wu about working for the Communists. He turned "

― Jung Chang , Wild Swans: Three Daughters of China