缓慢落入友谊，但当你正在进行时，继续保持坚定和不变。
Be slow to fall into friendship，but when you are in，continue firm and constant.
I don't need a reason to be legendary.
有人告诉我在我书中每个方程式将会降低一半的销售量。结果，我确实放了一个方程式——爱因斯坦著名的等式，E=mc2。我发现这并没有吓跑我一半的潜在读者。
成功的真正标准是你帮助他人取得成功的程度。
可持续性不仅仅是一个流行词，而是我们对后代的责任。
在采矿业，可持续性不仅仅是一个流行词，而是长期成功的必要条件。
Success in business comes from understanding your customers better than anyone else.
The safest way to try and get what you want is to try and deserve what you want. It’s such a simple idea. It’s the golden rule so to speak. You want to deliver to the world what you would buy if you were on the other end.