数学是给不同事物起相同名字的艺术。
The chief beauty about time is that you cannot waste it in advance. The next year, the next day, the next hour are lying ready for you, as perfect, as unspoiled, as if you had never wasted or misapplied a single moment in all your life. You can turn over a new leaf every hour if you choose.
失败的勇气与成功的意愿同样重要。
当天赋不努力时，勤奋会战胜天赋。
The true power of an algorithm is not in its speed or efficiency, but in its ability to reveal the hidden structures of the problems it addresses.
To create is to participate in the transformation of the world.