The most important thing in mathematics is to understand the concepts, not just to memorize formulas.
同盟会《民报》第一号发刊词,1905年11月26日,东京
Hope is a good thing, maybe the best of things, and no good thing ever dies.
写作是坠入自我深渊的过程。
成功的关键是不断推动自己。
诗歌是灵魂的镜子。