可持续性必须有利可图，否则就根本不可持续。

真正的领导力是赋予他人实现全部潜力的能力。

"El arte es la mentira que nos permite comprender la verdad."

如何英明地统治是被写就的。

I only dread one day at a time!

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

Sometimes the most important experiments are the ones that fail, because they teach us what doesn't work.

Good can exist without evil， whereas evil cannot exist without good.