成功不是拥有的，而是租来的，而且每天都要付租金。
Success isn't owned, it's leased, and rent is due every day.
我们开采的每一吨煤炭都必须以最小的环境影响创造最大的价值。
我们必须衡量重要的东西 - 不仅是财务回报，还包括社会和环境影响。
The test of our progress is not whether we add more to the abundance of those who have much; it is whether we provide enough for those who have too little.
预测未来的最好方法就是创造未来。
The best way to be happy is to forgive.
"Every child deserves a bookshelf full of stories that reflect their own experiences and open windows to new worlds."
The world is a book, and those who do not travel read only one page.
生命的秘诀不仅是生存，而是以激情、同情、幽默和风格茁壮成长。
The most sustainable quarry is the one that balances production with environmental stewardship.