Keep a firm moral integrity. More refers to women who are determined not to marry. Xie Huilian, a Song Dynasty poet in the Southern Dynasties, wrote: "White jade is white, empty and faithful, but it doesn't snow, so it disappears because of the times." Kuang Zhouyi's "Hui Feng Hua Sting" Volume 5: "My wife is loyal and does not say anything. When she says peony, she must be considered a lady and not frivolous. " Kang Youwei's preface to "The Book of Great Harmony" says, "My uncle and sister Hong Yi, and my middle sister Qiong Ju keep her virginity and Nadeshiko."