我们都是我们记忆的总和。

The coal industry has been the backbone of America's energy independence for generations.

The concept of law is not a concept of a thing, but of a complex social practice.

大自然为我们提供了研究生物学的惊人工具；我们只需要知道去哪里寻找。

可怕的是假装二流是一流。假装你不需要爱，当你需要的时候；或者你喜欢你的工作，当你很清楚你能够做得更好时。

However difficult life may seem, there is always something you can do, and succeed at. It matter that you don’t just give up.

我不相信上帝，但我想念他。

The future belongs to those who can balance energy needs with environmental responsibility.

A business that doesn’t innovate will stagnate.

摧毁人民最有效的方法就是否认并抹去他们对自己历史的理解。

"Education is the kindling of a flame, not the filling of a vessel."