可持续性不是一种趋势，而是我们对后代的责任。

合作是解决全球最大健康挑战的关键。

【大意】要想招引游鱼就得先通水，要想招引飞鸟就得先种树。

There is no such thing as a moral or an immoral book. Books are well written, or badly written. That is all.

I think people believe in heaven because they don’t like the idea of dying, because they want to carry on living and they don’t like the idea that other people will move into their house and put their things into the rubbish.