如果你想成为最好的，你必须做别人不愿意做的事。

Children's books should challenge as well as comfort.

He not busy being born is busy dying.

最好的电影是那些给你留下更多问题而不是答案的电影。

The use of a program to prove the 4-color theorem will not change mathematics - it merely demonstrates that the theorem, a challenge for a century, is probably not important to mathematics.