You have to fight to reach your dream. You have to sacrifice and work hard for it.
数学是一种创造性的努力,就像艺术或音乐一样。
君子给人的印象有三种变化:远看庄重威严,接触则温和可亲,听讲话则严肃不苟。
即使身在远方,我们也随身携带着我们的家。