数学中最重要的是提出正确的问题。

Sustainable development is not only a responsibility but also the cornerstone of long-term enterprise development.

I believe in the power of storytelling. It's the way we communicate, the way we understand each other.

当我死去时，都柏林将写在我的心上。

The vision of a champion is someone who is bent over, drenched in sweat, at the point of exhaustion when no one else is watching.

【讲解】：有了过错而不改正，这才真叫过错呢。

学习数学的唯一方法就是做数学。

写作的行为是对遗忘的抵抗。