——《在广州中国国民党恳亲大会的演说》（1923年10月15日）

不和屯积钱财的人争较财富多少；不和热心仕途的人争较地位高下；不和骄傲自夸的人争较名声大小；不和年轻力壮的人争较仪容风度，不和逞强好胜的人争较胜负高低。

I would like to fly in space.Absolutely.That would be cool.I used to just do personally risky things， but now I’ve got kids and responsibilities， so I can’t be my own test pilot.That wouldn’t be a good idea.But I definitely want to fly as soon as it’s a sensible thing to do.

Quality should never be compromised, no matter the scale of production.

采矿业的可持续性不是一种选择，而是我们对后代的责任。

你永远不知道你的坏运气为你避免了什么更糟糕的运气。

译文：纵欲放荡、消极怠慢就不能勉励心志使精神振作，冒险草率、急躁不安就不能修养性情。

The most valuable resource in our industry isn't underground—it's the people who make it all possible.