Natural gas is a versatile fuel that can support renewable energy growth by providing reliability when the sun isn't shining and the wind isn't blowing.

不要烦恼啊不要烦恼，连明月的圆缺都难以长久保持。

Sustainability is not an option—it's a responsibility we owe to the next generation.

"世界是一本书，而书是一座监狱。"

事物忌讳到达顶点，事情避免极其完美，人则忌讳飞黄腾达。

We are never the same with others as when we are alone. We are different, even when we are in the dark.

如果我们一直等着别人或以后，改变是不会到来的。我们自己就是我们在等待的人。我们自己就是我们寻求的改变。

每个词都是一个世界。

人类注定是自由的。