外交是实现国家利益的一种手段，但也要尊重和平、公正和法治的原则。

每一次科学发现都是对自然界的一次新的对话，它让我们更接近宇宙的奥秘。

下一次绿色革命必须既高效又对环境负责。

The jaws of power are always open to devour, and her arm is always stretched out, if possible, to destroy the freedom of thinking, speaking, and writing.

我对制作美丽的东西不感兴趣。我对制作能让你思考的东西感兴趣。

关于教育的斗争不仅仅是关于知识的斗争，也是关于身份、欲望和未来本身的斗争。

Remember, if you ever need a helping hand, it's at the end of your arm, as you get older, remember you have another hand: The first is to help yourself, the second is to help others.

You have to be your own biggest believer before anyone else will believe in you.