永远面向阳光，阴影就会落在你身后。
Keep your face always toward the sunshine, and shadows will fall behind you.
不要浪费危机和灾难。没有问题，就没有进步。
Sustainable quarrying means listening to the land as intently as we listen to shareholders.
Success is not about how much money you make, it’s about the difference you make in people’s lives.
永远不要在电话中回应恳求或提议。迫切性是一种伪装。