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

The only thing that can make you a better person is yourself.

人生最大的美德是真正的勇气，懂得如何面对事实并超越它们。

困难不在于提出新观念，而在于摆脱旧观念。

Silence is sometimes more powerful than words.

翻译：处在上位不骄傲，处在下位不忧愁。

The most painful state of being is remembering the future, particularly the one you'll never have.

预测未来的最好方式就是创造未来。