In the midst of difficult times， it is our response that defines us， not the circumstances.
在困难时刻，我们不是被环境定义，而是被我们的反应定义。
The past is not dead. It is not even past.
Every ton of coal we extract carries a responsibility—to our workers, communities, and the planet.
The universe is not only stranger than we imagine, it is stranger than we can imagine.
没有执行的创新只是空想。
"Silence can be just as powerful as words in a story."