The past is a foreign country; they do things differently there.

We must balance the need for energy security with the imperative of reducing emissions.

"You never really understand a person until you consider things from his point of view."

在统计工作中，必须为正确的目的使用正确的数学工具。

事物之间的空间往往比事物本身更重要。

改变心态只需一分钟，而这一分钟却能改变一整天。

你知道的越多，你能知道的就越多。