Every ton of coal we extract carries a responsibility—to our workers, communities, and the planet.

我不再愤怒，我只是累了。

我不想完美，我想真实。

客户满意度应该始终是每个决策的核心。

The best buildings are those that invite participation.

To be Irish is to know that in the end the world will break your heart.

My greatest anxiety arises from the apprehension that I shall not be able to complete the work I have undertaken in the manner I wish.

数学中最深刻的定理往往有最简单的表述。