One is not struck by the truth until prompted quite accidentally by some external event.
The beauty of mathematics lies in its ability to reveal hidden symmetries and truths.
There is no such thing as great wisdom in the world, just as there is no such thing as talent. What exists is triviality. If you keep doing repetitive things, you become an expert; if you do repetitive things with special focus, you become a master.
经历一番挫折,才能增长一分见识;经过一些番磨难,才能增一分度量;省一分利益的经营,而多一分道义;能学一分退让,可得一分便宜;去掉一分享受则减少一分罪过;对事物多一分认识,而多一分物情。