天空不是极限；它是开始。

Two roads diverged in the wood and I took the one less traveled by, And that has made all the difference.

"Books are the keys to understanding ourselves."

The greatest single achievement of computer science is the development of the concept of the algorithm.

胜利很重要，但真正重要的是你为达成目标所付出的努力。

What good is the warmth of summer, without the cold of winter to give it sweetness.