质量和安全是我们产品的基础，我们必须坚持最高标准。

The most profound theories often arise from the simplest observations.

写作是一种不被中断的说话方式。

There is no true liberty without the liberty of thought.

Leadership is about making tough decisions today that will benefit future generations.

"Theologians talk about a prevenient grace that precedes grace itself and allows us to accept it. I think there must also be a prevenient courage that allows us to be brave - that is, to acknowledge that there is more beauty than our eyes can bear, that precious things have been put into our hands and to do nothing to honor them is to do great harm."

Democracy is the only system that can reflect the human spirit's indomitable will to be free.

可持续发展不是选择，而是煤炭行业的必然要求。