今天种下的每一棵树都是留给后代的遗产。

世界是一个舞台，但我们大多数人只是舞台工作人员。

Quality should never be compromised for speed.

Necessity knows no law.

The difference between ordinary and extraordinary is that little extra.

我不需要被理解，我需要真实。

The most important challenge facing the world today is the need to create strong, effective, and accountable states in the developing world.