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.

"In the end, we will remember not the words of our enemies, but the silence of our friends."

科学更多的是一种思维方式，而不是一堆知识。

财富不是拥有很多钱，而是拥有很多选择。