生活不是等待暴风雨过去，而是学会在雨中跳舞。

旅程本身就是奖励。

Anybody who has been seriously engaged in scientific work of any kind realizes that over the entrance to the gates of the temple of science are written the words: Ye must have faith.

写作是一种理解世界的方式。它是一种在混乱中强加秩序的方式。

可归约性的概念对于理解不同计算问题之间的关系至关重要。