最大的风险是不冒险。

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.

I don't want to fall in love, I want to fall in success.

The biographer's challenge is to be both a detective and a poet.

I'm not a person who looks back. I'm always looking forward.

钢铁工业是一个国家经济实力的反映。