The writer is either a practicing recluse or a delinquent, guilt-ridden one.
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
译文:像许汜那样只知道买田置房(追求个人私利),恐怕会羞于见到雄才大略的刘备。可惜时光流逝,我在风雨飘摇中担惊受怕,连树木都已长得粗壮高大!(注:“树犹如此”  化用典故,感慨时光虚度)能请谁唤来歌女,用红巾翠袖擦拭我这英雄失意的泪水?
用心最重要的是光明坦诚,外表最重要的是要正直沉稳,说话最重要的是要简洁真诚。