"The most important thing for any leader is to create more leaders."

The primary rules of obligation are those that require or forbid certain actions.

我只是努力在每种情况下保持冷静和镇定。

Efficiency in mining isn’t just about cost—it’s about reducing our environmental footprint.

唯一能战胜厄运的就是努力工作。

Education is the most powerful weapon which you can use to change the world.

Mathematics is the art of giving the same name to different things.