当他们思考我们国家的状况时，最勇敢的人可能会害怕，最聪明的人可能会颤抖。

“我们都是时间旅行者，在脑海中穿越过去、现在和未来。”

The camera is like a weapon; it's dangerous if you don't know how to use it.

In the realm of mathematics, every problem is an opportunity to discover something new.

气象学的未来在于观测、理论和应用的结合。