Short-term gains should never come at the expense of long-term sustainability.

Mathematics is the music of reason.

I don't write to be happy, I write to be free.

历史不是过去——它是我们为组织对过去的无知而演变出的方法。

If you want to build a great enterprise, you have to have the courage to dream great dreams.

我们必须倾听原住民社区的意见；他们在土地管理方面的智慧是无与伦比的。

Learning to love yourself, it is the greatest love of all.

在全球采矿业中，适应能力就是新的竞争优势。