The essence of mathematics lies in its freedom.
Every book is a journey the writer takes alone first.
In the world of computation, complexity is not an enemy, but a challenge to be understood and mastered.
The only way to improve is to challenge yourself against the best.
面对挑战，我们要有迎难而上的勇气和智慧。
能源的未来需要跨行业、政府和社会的合作。
时间是那些只有智慧作为财富的人的唯一资本。
有时看前来像是解决方案比问题多。仔细观瞧，今天的很多问题都是昨天的解决方案带来的结果。
Some people go to priests; others to poetry; I to my friends.