The biggest risk is not taking any risk. In a world that's changing really quickly, the only strategy that is guaranteed to fail is not taking risks.

唯一的真正幸福来自于为一个目标挥霍自己。

The most important political challenge of our time is to create strong, effective, and accountable states.

实验的语言比任何推理都更具权威性：事实可以摧毁我们的推理，但反之则不然。

降临在我们身上的不幸总是最严重的。