冰壸秋月

Explanation: Figurative moral innocence clean. Song Su "gifts Pan Valley" poem: "blouse black hands, such as turtles, not harm curling storage Moon." "History of the Song Dong Li Chuan": "May the example ~, Ying Toru flawless, non-Wucao clinics . " 　　Source: Song Su "gifts Pan Valley" black hands, such as turtle poem blouse, not harm curling storage Moon. " 　　Examples: Would like in such ~, Ying thorough and perfect, non-Wucao clinics. ★ "Sung Lee Dong Chuan"