Literature Reference: 肃，敬也。—— 《说文》 Su, meaning reverence. Source from 'Shuowen Jiezi'.
肃: Respectful, solemn, and earnest.
Meaning: Su signifies solemnity and respect, symbolizing discipline and order.
萧肃 (Xiao Su)
A scholar of the Southern Song Dynasty, known as Chu Gong, from Anfu, Jiangxi, who became a Jinshi in 1148.
史肃 (Shi Su)
a Jin dynasty official and poet, known for his erudition, exquisite poetry, adept use of allusions, and skill in calligraphy and painting, who held various government positions and authored 'Dan Xuan Yi Gao'.
刘肃 (Liu Su)
A contemporary figure from Wangdun, Duchang, Jiangxi.