There was never a century nor a country that was short of experts who knew the Deity's mind and were willing to reveal it.

We've been warned against offering the people of this nation false hope. But in the unlikely story that is America, there has never been anything false about hope.

绝不能为了短期利益而牺牲质量。

数学的目标不是解决问题，而是理解问题。