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婚姻好比鳥籠，外面的鳥想進 進不去；里面的鳥兒想出出不來。

Sustainability isn't an option—it's the foundation of our future.

The conjectures of the Langlands program are a challenge to the next generation of mathematicians.

單靠技術無法解決饑餓問題，必須與公平獲取和教育相結合。

Systems have sub-systems and sub-systems have sub- systems and so on ad infinitum - which is why we're always starting over.

I find I'm so excited. I can barely sit still or hold a thought in my head. I think it the excitement only a free man can feel, a free man at the start of a long journey whose conclusion is uncertain. I hope I can make it across the border.I hope the Pacific is as blue as it has been in my dreams. I hope to see my friend, and shake his hand. I hope.