Letter to Yang Kaizhi [1] (December 13, 1956)  Brother Zizhen: I have received your kind letters and the photographs you sent on each occasion. Many thanks.  Please convey my respectful greetings to Old Madam [2] and to the entire family, wishing them all peace and good health!  Mao Zedong  December 13, 1956  Printed from the manuscript.  Notes  [1] Yang Kaizhi, with the courtesy name Zizhen, was the elder brother of Mao Zedong’s wife, Yang Kaihui.  [2] Refers to Xiang Zhenxi, the mother of both Yang Kaizhi and Yang Kaihui.