矿业中的每个挑战都是重新定义未来的机会。

The friend who holds your hand and says the wrong thing is made of dearer stuff than the one who stays away.

未来是创造一个更可持续的世界。

Experience is simply the name we give our mistakes.

别让仇恨者阻止你做你的事。

I don't think that everyone should become a mathematician, but I do believe that many students don't give mathematics a real chance.

每一种化学结合完全且仅仅依赖于两种对立的力量，即正电和负电。