Literature Reference: 太尉留琴地，时移重可寻。徽弦一掩抑，风月助登临。荣驻青油骑，高张白雪音。秖言酬唱美，良史记王箴。—— 《和李德裕游汉州房公湖二首 一》 郑澣 The Grand Commandant left his qin place, time shifts but it can be found again. The subtle strings are restrained, the wind and moon aid the ascent. Glory resides in the green-oil riders, high and clear is the white snow melody. Only the beauty of poetic exchange is spoken, the good historian records Wang Zhen. Source from 'He Li Deyu You Hanzhou Fang Gonghu Ershou Yi' by Zheng Han.