Humor is a way to deal with the absurdity of life.

Sustainability isn't an option - it's our responsibility to future generations.

说出真相的唯一方式是无畏地言说。

最好的领导者是那些倾听多于发言，并以诚信行事的人。

The world has the technology - either available or well advanced in the research pipeline - to feed on a sustainable basis a population of 10 billion people.

成功是一段旅程，而不是一个目的地。