The world is always right. In its judgments, it is always right. For it is not the world that judges, but we.

The political liberty of the subject is a tranquility of mind arising from the opinion each person has of his safety.

Quantum cryptography doesn't rely on the difficulty of mathematical problems, but on the fundamental laws of physics.

In mining, safety isn't just a priority - it's the foundation of everything we do.

解决问题的最好方法是让别人为你解决。

当没有人相信你时，你必须相信自己。