The paper industry has a responsibility to lead the way in environmental stewardship.
膨胀的概念是宇宙在其最早的时刻经历了一段极其迅速的扩张期。
我学会了你不能控制一切,但你可以控制自己的反应。
"The human voice is the most powerful tool we have to convey the depth of our experiences."
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.