Literature Reference: 已让辟书称抱疾，沧洲便许白髭生。—— 《送石协律归吴》 Having already declined the official summons due to illness, I am now allowed to grow white whiskers in seclusion. Source from 'Song Shi Xie Lv Gui Wu'.
辟: Thorough, pioneering.
书: Books, repositories of knowledge, embody wisdom. They express art and literature, convey profound thoughts, facilitate emotional expression, and are adorned with literary elegance.
Meaning: The official summons symbolizes the recognition and call for talent.