No president who performs his duties faithfully and conscientiously can have any leisure.

光是建筑的本质；它定义了空间并赋予其意义。

The world is full of obvious things which nobody by any chance ever observes.

Adventure should be 80 percent planning and 20 percent sheer guts.

I’m not trying to be perfect, I’m just trying to be better.

"The past is never dead. It's not even past."

能源的未来是多元化的。没有任何单一能源可以满足世界的所有需求。我们需要所有能源协同工作。