history
Even after a few cups of wine he noticed any wrong note, and a saying of his day ran 曲有误，周郎顾, 'if a tune goes wrong, Master Zhou turns his head'.
culture
Two sayings come from the novel: 既生瑜，何生亮, his dying cry 'if Heaven made Yu, why make Liang too?', for a rival who outshines you, and 周瑜打黄盖, 'Zhou Yu flogs Huang Gai', a staged beating to fool Cao Cao, for a hardship both sides agreed to.
