Literature Reference: 礼尚往来。——《礼记·曲礼上》 Courtesy demands reciprocity. Source from 'The Book of Rites: Qu Li I'.
礼: Politeness, etiquette, and understanding of decorum. When used in personal names, it often conveys the meaning of courtesy, which is conducive to receiving assistance from noble benefactors.
尚: Veneration, nobility.
Meaning: Courtesy emphasizes mutual exchange and respect in interpersonal relationships.