译文：先从忧患方面考虑事情的人，就会享受到乐事，一时的操劳辛苦是永远安逸的开始。赏析：我们做事要有忧患意识，要有先苦后甜的意识，如果只图安逸快乐，就是祸患的开始。
He who refuses to do arithmetic is doomed to talk nonsense.
To be human is to be flawed, but it is also to be capable of great change.
"The challenge in theoretical computer science is not just to solve problems, but to understand why they are hard to solve."