From
《长歌行》 (Song of Long Travel, Han-era yuefu
乐府 anthologized in
《乐府诗集》):
青青园中葵,朝露待日晞。阳春布德泽,万物生光辉……少壮不努力,老大徒伤悲 (Green, green the mallow in the garden, morning dew waits for the sun to dry. The warm spring bestows its grace; all things shine with splendor... If youth does not strive, old age can only grieve in vain). One of the most universally-memorized Han poems, taught in every Chinese primary school.