我们唯一需要害怕的就是害怕本身。
"The only thing we have to fear is fear itself."
建筑业必须进化，否则就有被淘汰的风险。
Payphone, wishing you would call me.
The weak grow strong by effrontery, the strong by yielding.
即使在抽象中，数学也具有深远的现实应用。