If you are looking for something in your house， and you finally find it， when you’re done with it， don’t put it back where you found it. Put it back where you first looked for it.

The measure of our success is not just in tons extracted, but in communities uplifted.

你脑袋里有大脑，鞋子里有双脚，你可以选择任何方向前进。

世界上充满了显而易见的事物，却没有人去观察。

臣民的政治自由是每个人对自己安全感的平静心态。