It wasn't Shuimu Nianhua's song," How many people once admired your youthful face?" It wasn't a quote from Yeats 'poem. The lyrics of the song were directly adapted from a famous line in the novel of the same name by the English poet William Somerset Maugham, The Moon and Sixpence. When the song was released, it was hailed as a "tribute" to Yeats 'classic poem.